He that in his studies wholly applies himself to labour and exercise, and neglects meditation, loses his time, and he that only applies himself to meditation, and neglects labour and exercise, only wanders and loses himself.

The reproduction of mankind is a great marvel and mystery. Had God consulted me in the matter, I should have advised him to continue the generation of the species by fashioning them of clay, in the way Adam was fashioned.

The laws of conscience, which we pretend to be derived from nature, proceed from custom.

I don't believe in flying saucers... The energy requirements of interstellar travel are so great that it is inconceivable to me that any creatures piloting their ships across the vast depths of space would do so only in order to play games with us over a period of decades.

It was truly very good reason that we should be beholden to God only, and to the favour of his grace, for the truth of so noble a belief, since from his sole bounty we receive the fruit of immortality, which consists in the enjoyment of eternal beatitude.... The more we give and confess to owe and render to God, we do it with the greater Christianity.

Cunning and deceit will every time serve a man better than force to rise from a base condition to great fortune.

The art of dining well is no slight art, the pleasure not a slight pleasure.

Man, being the servant and interpreter of Nature, can do and understand so much and so much only as he has observed in fact or in thought of the course of nature. Beyond this he neither knows anything nor can do anything.

A robot must protect its own existence as long as such protection does not conflict with the First or Second Laws.

For truth itself has not the privilege to be spoken at all times and in all sorts.

Faith ever says, "If Thou wilt," not "If Thou canst."

It cannot be that axioms established by argumentation should avail for the discovery of new works, since the subtlety of nature is greater many times over than the subtlety of argument. But axioms duly and orderly formed from particulars easily discover the way to new particulars, and thus render sciences active.

Hope has two beautiful daughters. Their names are anger and courage; anger at the way things are, and courage to see that they do not remain the way they are.

What should a philosopher say, then, in the face of each of the hardships of life? "It was for this that I've been training myself, it was for this that I was practising."

There are some defeats more triumphant than victories.

If you reject absolutely any single sensation without stopping to discriminate with respect to that which awaits confirmation between matter of opinion and that which is already present, whether in sensation or in feelings or in any immediate perception of the mind, you will throw into confusion even the rest of your sensations by your groundless belief and so you will be rejecting the standard of truth altogether. If in your ideas based upon opinion you hastily affirm as true all that awaits confirmation as well as that which does not, you will not escape error, as you will be maintaining complete ambiguity whenever it is a case of judging between right and wrong opinion.

If I hear the Way [of truth] in the morning, I am content even to die in that evening.

To give one's self earnestly to the duties due to men, and, while respecting spiritual beings, to keep aloof from them, may be called wisdom.

Thus I progressed on the surface of life, in the realm of words as it were, never in reality. All those books barely read, those friends barely loved, those cities barely visited, those women barely possessed! I went through the gestures out of boredom or absent-mindedness. Then came the human beings, they wanted to cling, but there was nothing to cling to, and that was unfortunate for them. As for me, I forgot. I never remembered anything but myself.

The human understanding is of its own nature prone to suppose the existence of more order and regularity in the world than it finds. And though there be many things in nature which are singular and unmatched, yet it devises for them parallels and conjugates and relatives which do not exist. Hence the fiction that all celestial bodies move in perfect circles, spirals and dragons being (except in name) utterly rejected.

A prudent man, in order to secure his tranquility, will consult his natural disposition in the choice of his plan of life. If, for example, he be persuaded that he should be happier in a state of marriage than in celibacy, he ought to marry; but if he be convinced that matrimony would be an impediment to his happiness, he ought to remain single.

I am an atheist, out and out. It took me a long time to say it. I've been an atheist for years and years, but somehow I felt it was intellectually unrespectable to say one was an atheist, because it assumed knowledge that one didn't have. Somehow, it was better to say one was a humanist or an agnostic. I finally decided that I'm a creature of emotion as well as of reason. Emotionally, I am an atheist. I don't have the evidence to prove that God doesn't exist, but I so strongly suspect he doesn't that I don't want to waste my time.

When the Great Dao (Tao, perfect order) prevails, the world is like a Commonwealth State shared by all, not a dictatorship.

The institutions of the Ruler are rooted in his own character and conduct, and sufficient attestation of them is given by the masses of the people. He examines them by comparison with those of the three kings, and finds them without mistake. He sets them up before Heaven and Earth, and finds nothing in them contrary to their mode of operation. He presents himself with them before spiritual beings, and no doubts about them arise. He is prepared to wait for the rise of a sage a hundred ages after, and has no misgivings. His presenting himself with his institutions before spiritual beings, without any doubts arising about them, shows that he knows Heaven. His being prepared, without any misgivings, to wait for the rise of a sage a hundred ages after, shows that he knows men.

Nobody realizes that some people expend tremendous energy merely to be normal.

No more useful inquiry can be proposed than that which seeks to determine the nature and the scope of human knowledge. ... This investigation should be undertaken once at least in his life by anyone who has the slightest regard for truth, since in pursuing it the true instruments of knowledge and the whole method of inquiry come to light. But nothing seems to me more futile than the conduct of those who boldly dispute about the secrets of nature ... without yet having ever asked even whether human reason is adequate to the solution of these problems.

Death induces the sensual person to say: Let us eat and drink, because tomorrow we shall die – but this is sensuality's cowardly lust for life, that contemptible order of things where one lives in order to eat and drink instead of eating and drinking in order to live.

An armed insurrection ... would hinder and bring into disrepute this spiritual insurrection.

How then doth David in spirit call him Lord, saying, The LORD said unto my Lord, Sit thou on my right hand, till I make thine enemies thy footstool? If David then call him Lord, how is he his son? 22:43-45 (KJV)

It is impossible for someone to dispel his fears about the most important matters if he doesn't know the nature of the universe but still gives some credence to myths. So without the study of nature there is no enjoyment of pure pleasure.

Truth, like light, blinds. Falsehood, on the contrary, is a beautiful twilight that enhances every object.

Not one of these nobly equipped young men has escaped the restless, exhausting, confusing, debilitating crisis of education. ... He feels that he cannot guide himself, cannot help himself, and then he dives hopelessly into the world of everyday life and daily routine, he is immersed in the most trivial activity possible, and his limbs grow weak and weary.

We must not attach knowledge to the mind, we have to incorporate it there.

Honesty and trust are promoted, and good neighborliness cultivated.

Sir Henry Wotton used to say that critics are like brushers of noblemen's clothes.

I should like you to consider that these functions (including passion, memory, and imagination) follow from the mere arrangement of the machine's organs every bit as naturally as the movements of a clock or other automaton follow from the arrangement of its counter-weights and wheels.

Heaven and earth shall pass away, but my words shall not pass away. Mark 13:31, KJV

The veneration of Mary is inscribed in the very depths of the human heart.

A wise man sees as much as he ought, not as much as he can

You are in the same manner surrounded with a small circle of persons... full of desire. They demand of you the benefits of desire... You are therefore properly the king of desire. ...equal in this to the greatest kings of the earth... It is desire that constitutes their power; that is, the possession of things that men covet.

When I, who conduct this inquiry, love something, then three things are found: I, what I love, and the love itself. There are, therefore three things: the lover, the beloved and the love.

We do not become righteous by doing righteous deeds but, having been made righteous, we do righteous deeds.

I find that the best virtue I have has in it some tincture of vice.

For human beings, the measure of every action is the impression of the senses.

Lying and guile need only to be revealed and recognized to be undone. When once lying is recognized as such, it needs no second stroke; it falls of itself and vanishes in shame.

The two ways of contemplation are not unlike the two ways of action commonly spoken of by the ancients: the one plain and smooth in the beginning, and in the end impassable; the other rough and troublesome in the entrance, but after a while fair and even. So it is in contemplation: If a man will begin with certainties, he shall end in doubts; but if he will be content to begin with doubts he shall end in certainties.

Since... nature is a principle of motion and mutation... it is necessary that we should not be ignorant of what motion is... But motion appears to belong to things continuous; and the infinite first presents itself to the view in that which is continuous. ...[F]requently ...those who define the continuous, employ the nature or the infinite, as if that which is divisible to infinity is continuous.

Knowledge more than a Means. Also without this passion I refer to the passion for knowledge, science would be furthered: science has hitherto increased and grown up without it. The good faith in science, the prejudice in its favour, by which States are at present dominated (it was even the Church formerly), rests fundamentally on the fact that the absolute inclination and impulse has so rarely revealed itself in it, and that science is regarded not as a passion, but as a condition and an "ethos." Indeed, amour-plaisir of knowledge (curiosity) often enough suffices, amour-vanity suffices, and habituation to it, with the afterthought of obtaining honour and bread; it even suffices for many that they do not know what to do with a surplus of leisure, except to continue reading, collecting, arranging, observing and narrating; their "scientific impulse" is their ennui.

To become god is merely to be free on this earth, not to serve an immortal being.

Nature forms us for ourselves, not for others; to be, not to seem.