Enlightenment is man's emergence from his self-imposed nonage.

Treat humanity, whether in your own person or that of another, always as an end and never merely as a means.

Act only according to that maxim whereby you can at the same time will that it should become a universal law.

Two things fill the mind with ever new and increasing admiration and awe: the starry heavens above me and the moral law within me.

Sapere aude! Have courage to use your own understanding!

One swallow does not make a summer, nor does one day; and so too one day, or a short time, does not make a man blessed and happy.

There is no great genius without a touch of madness.

The educated differ from the uneducated as much as the living differ from the dead.

Patience is bitter, but its fruit is sweet.

Hope is a waking dream.

The wise man does not expose himself needlessly to danger, since there are few things for which he cares sufficiently; but he is willing, in great crises, to give even his life.

It is the mark of an educated mind to be able to entertain a thought without accepting it.

Knowing yourself is the beginning of all wisdom.

The whole is greater than the sum of its parts.

We are what we repeatedly do. Excellence, then, is not an act, but a habit.

The courage of truth is the first condition of philosophic study.

Every man is a piece of the continent, a part of the main.

Freedom is the recognition of necessity.

The truth is the whole.

What experience and history teaches us is that people and governments have never learned anything from history, or acted on principles deduced from it.

The real is the rational and the rational is the real.

To be independent of public opinion is the first formal condition of achieving anything great.

The history of the world is none other than the progress of the consciousness of freedom.

Nothing great in the world has ever been accomplished without passion.

The owl of Minerva spreads its wings only with the falling of the dusk.