The " Five Words," 'genus', 'species', 'difference', 'property', 'accident', were used by the Aristotelians, in order to express the subordination of kinds, and to describe the nature of definitions and propositions. In modern times, these technical expressions have been more referred to by Natural Historians than by Metaphysicians.

Give thyself time to learn something new and good, and cease to be whirled around.

Reason has discovered the struggle for existence and the law that I must throttle all those who hinder the satisfaction of my desires. That is the deduction reason makes. But the law of loving others could not be discovered by reason, because it is unreasonable.

What is called "objectivity," scientific for instance (in which I firmly believe, in a given situation) imposes itself only within a context which is extremely vast, old, firmly established, or rooted in a network of conventions ... and yet which still remains a context.

As a liberal I would hesitate to propose a blanket ban on any style of dress because of the implications for individual liberty and freedom of choice.

The liberal world order that emerged, that... has these pragmatic and... moral dimensions has been severely challenged in the last few years, and the sources of this challenge are numerous. One is the rise of overtly authoritarian states like China and Russia. They have consolidated their rule. They seem to be stable internally, and they are increasingly seeking to project their power and influence, their model... across international borders.

Whereas materialistic historians and philosophers neglect psychic realities, Freud is inclined to overstress their importance. I am not a psychologist, but it seems to me fairly evident that physiological factors, especially our endocrines, control our destiny ... I am not able to venture a judgment on so important a phase of modern thought. However, it seems to me that psychoanalysis is not always salutary. It may not always be helpful to delve into the subconscious. The machinery of our legs is controlled by a hundred different muscles. Do you think it would help us to walk if we analyzed our legs and knew exactly which one of the little muscles must be employed in locomotion and the order in which they work? ... I am not prepared to accept all his [Freud's] conclusions, but I consider his work an immensely valuable contribution to the science of human behavior. I think he is even greater as a writer than as a psychologist. Freud's brilliant style is unsurpassed by anyone since Schopenhauer.

The need of reason is not inspired by the quest for truth but by the quest for meaning. And truth and meaning are not the same. The basic fallacy, taking precedence over all specific metaphysical fallacies, is to interpret meaning on the model of truth.

Speciesism is an attitude of prejudice towards beings because they're not members of our species, so just as racism means that you're prejudiced against beings who are not members of your race and sexism means you're prejudiced against people of the other sex. So we humans tend to be speciesist in we think that any being that is a member of the species homo sapien just automatically has a higher moral status and is more important than any being that is a member of any other species, irrespective of the actual characteristics of those beings.

And truly... if men could be persuaded to mind more the advancement of natural philosophy than that of their own reputations, it were not, methinks, very uneasy to make them sensible, that one of the considerablest services, that they could do mankind, were to set themselves diligently and industriously to make experiments and collect observations, without being over-forward to establish principles and axioms, believing it uneasy to erect such theories, as are capable to explicate all the phænomena of nature, before they have been able to take notice of the tenth part of those phænomena, that are to be explicated.

What was was ever, and ever shall be. For, if it had come into being, it needs must have been nothing before it came into being. Now, if it were nothing, in no wise could anything have arisen out of nothing.

My religious reading has long been confined to the moral branch of religion, which is the same in all religions; while in that branch which consists of dogmas, all differ.

Facing a landscape annihilated by the light, to remain serene supposes a temper I do not have. The sun is my purveyor of black thoughts; and summer the season when I have always reconsidered my relations with this world and with myself, to the greatest prejudice of both.

During the last three centuries, there has been, by virtue of the Inquisition, a greater enjoyment of peace, and happiness, in Spain, than in the other nations of Europe.

I never failed in mathematics. Before I was fifteen I had mastered differential and integral calculus.

It is difficult, if not impossible, to define the limit of our reasonable desires in respect of possessions.

All the time that this horrid scene was acting or avenging, as well as for some time before, and ever since, the wicked instigators of this unhappy multitude, guilty, with every aggravation, of all their crimes, and screened in a cowardly darkness from their punishment, continued without interruption, pity, or remorse, to blow up the blind rage of the populace, with a continued blast of pestilential libels, which infected and poisoned the very air we breathed in.

It is a sign of wisdom to be able to use parrhesia without falling into the garrulousness of athuroglossos... One of the problems... how to distinguish that which must be said from that which should be kept silent.

You see how few things you have to do to live a satisfying and reverent life? If you can manage this, that's all even the gods can ask of you. Thou seest how few be the things, the which if a man has at his command his life flows gently on and is divine.

Believe me, my friends, you are yet very deficient with regard to the best modes of training your children, or of arranging your domestic concerns.

This mutual dependencies no longer the dialectical relationship between master and servant, which has been broken in the struggle for mutual recognition, but rather a vicious circle which encloses both the master and the servant. Do the technicians rule, or is their rule that of the others, who rely on the technicians as their planners and executors?

If you want to go down deep you do not need to travel far; indeed, you don't have to leave your most immediate and familiar surroundings.

Go where he will, the wise man is at home, His hearth the earth, his hall the azure dome.

All natural philosophers, who wished to proceed mathematically in their work, have hence invariably (although unknown to themselves) made use of metaphysical principles, and must make use of such, it matters not how energetically they may otherwise repudiate any claim of metaphysics on their science.

Blair has been the modern man he claims to be: for him, a sense of subjective certainty is all that is needed for an action to be right. If deception is needed to realise the providential design, it cannot be truly deceitful.

No man with a genius for legislation has appeared in America. They are rare in the history of the world. There are orators, politicians, and eloquent men, by the thousand; but the speaker has not yet opened his mouth to speak who is capable of settling the much-vexed questions of the day.

And to bring in a new word by the head and shoulders, they leave out the old one.

The mental operation by which one achieves new concepts and which one denotes generally by the inadequate name of induction is not a simple but rather a very complicated process. Above all, it is not a logical process although such processes can be inserted as intermediary and auxiliary links. The principle effort that leads to the discovery of new knowledge is due to abstraction and imagination.

Just as we suffer from excess in all things, so we suffer from excess in literature; thus we learn our lessons, not for life, but for the lecture room.

He has been named respectively, Jehovah, Allah, Brahma, Father in Heaven, Order of Heaven, First Cause, Supreme Being, Chance. Each name corresponds to a system of thought derived from the experiences of those who have used it.Among medieval and modern philosophers, anxious to establish the religious significance of God, an unfortunate habit has prevailed of paying Him metaphysical compliments. He has been conceived as the foundation of the metaphysical situation with its ultimate activity. If this conception be adhered to, there can be no alternative except to discern in Him the origin of all evil as well as of all good. He is then the supreme author of the play, and to Him must therefore be ascribed its shortcomings as well as its success.

Blest is that nation whose silent course of happiness furnishes nothing for history to say.

Since it is every man's interest to be happy through the whole of life, it is the wisdom of every one to employ philosophy in the search of felicity without delay; and there cannot be a greater folly, than to be always beginning to live.

The lover who kills himself for a girl has an experience which is more complete and much more profound than the hero who overturns the world.

I think that democratic communities have a natural taste for freedom: left to themselves, they will seek it, cherish it, and view any privation of it with regret. But for equality, their passion is ardent, insatiable, incessant, invincible: they call for equality in freedom; and if they cannot obtain that, they still call for equality in slavery.

Ethics increases the range of what it is about ourselves that we can will-extending it from our actions to the motives and character traits and dispositions from which they arise. We want to be able to will the sources of our actions down to the very bottom.

The Catholic solution of our problem, of our unique vital problem, the problem of the immortality and eternal salvation of the soul, satisfies the will, and therefore satisfies life; but the attempt to rationalize it by means of a dogmatic theology fails to satisfy the reason. And reason has its exigencies as imperious as those of life. It is no use seeking to force ourselves to consider as super-rational what clearly appears to us to be contra-rational... Infallibility, a notion of Hellenic origin, is in its essence a rationalistic category.

Men being, as has been said, by nature, all free, equal and independent, no one can be put out of this estate, and subjected to the political power of another, without his own consent.

Act, if you like,-but you do it at your peril. Men's actions are too strong for them. Show me a man who has acted, and who has not been the victim and slave of his action. What they have done commits and enforces them to do the same again. The first act, which was to be an experiment, becomes a sacrament. The fiery reformer embodies his aspiration in some rite or covenant, and he and his friends cleave to the form, and lose the aspiration. The Quaker has established Quakerism, the Shaker has established his monastery and his dance; and, although each prates of spirit, there is no spirit, but repetition, which is anti-spiritual.

One cannot be deeply responsive to the world without being saddened very often.

All things are in the Universe, and the universe is in all things: we in it, and it in us; in this way everything concurs in a perfect unity.

Not to display anger or other emotions. To be free of passion and yet full of love.

My point is not that everything is bad, but that everything is danger­ous, which is not exactly the same as bad. If everything is dangerous, then we always have something to do. So my position leads not to apa­thy but to a hyper- and pessimistic activism. I think that the ethico-political choice we have to make every day is to determine which is the main danger. "

We don't need fossils - the case for evolution is watertight without them; so it is paradoxical to use gaps in the fossil record as though they were evidence against evolution.

I approached the task of destroying images by first tearing them out of the heart through God's Word and making them worthless and despised. This indeed took place before Dr. Karlstadt ever dreamed of destroying images. For when they are no longer in the heart, they can do no harm when seen with the eyes. But Dr. Karlstadt, who pays no attention to matters of the heart, has reversed the order by removing them from sight and leaving them in the heart. For he does not preach faith, nor can he preach it; unfortunately, only now do I see that. Which of these two forms of destroying images is best, I will let each man judge for himself.

Judge not, that you be not judged. For with what judgment you judge, you will be judged; and with the measure you use, it will be measured back to you. And why do you look at the speck in your brother's eye, but do not consider the plank in your own eye? Or how can you say to your brother, 'Let me remove the speck from your eye'; and look, a plank is in your own eye? Hypocrite! First remove the plank from your own eye, and then you will see clearly to remove the speck from your brother's eye. 

One of the most striking signs of the decay of art is the intermixing of different genres.

To rule the imperial population, behold our vocation.

Every crusader is apt to go mad. He is haunted by the wickedness which he attributes to his enemies; it becomes in some sort a part of him.