Quotes from Immanuel Kant

Live your life as though your every act were to become a universal law.

Two things awe me most, the starry sky above me and the moral law within me.

It is presumed that there exists a great unity in nature, in respect of the adequacy of a single cause to account for many different kinds of consequences.

All human knowledge begins with intuitions, proceeds from thence to concepts, and ends with ideas.

The science of mathematics presents the most brilliant example of how pure reason may successfully enlarge its domain without the aid of experience

Our intellect does not draw its laws from nature, but it imposes its laws upon nature.

Philosophy stands in need of a science which shall determine the possibility, principles, and extent of human knowledge à priori.

Nature, when left to universal laws, tends to produce regularity out of chaos.

An organized product of nature is that in which all the parts are mutually ends and means.

The infinitude of creation is great enough to make a world, or a Milky Way of worlds, look in comparison with it what a flower or an insect does in comparison with the Earth.

The universal and lasting establishment of peace constitutes not merely a part, but the whole final purpose and end of the science of right as viewed within the limits of reason.

A society that is not willing to demand a life of somebody who has taken somebody else's life is simply immoral.

One who makes himself a worm cannot complain afterwards if people step on him.

If justice perishes, human life on Earth has lost its meaning.

The busier we are, the more acutely we feel that we live, the more conscious we are of life.

The question is not so much whether there is life on Mars as whether it will continue to be possible to live on Earth

The greatest problem for the human species, the solution of which nature compels him to seek, is that of attaining a civil society which can administer justice universally.

The touchstone of everything that can be concluded as a law for a people lies in the question whether the people could have imposed such a law on itself.

Heaven has given human beings three things to balance the odds of life: hope, sleep, and laughter.

He who is cruel to animals becomes hard also in his dealings with men. We can judge the heart of a man by his treatment of animals.

So act that your principle of action might safely be made a law for the whole world.

Patience is the strength of the weak, impatience is the weakness of the strong.

By a lie, a man... annihilates his dignity as a man.

At some future day it will be proved, I cannot say when and where, that the human soul is, while in earth life, already in an uninterrupted communication with those living in another world.