IMMANUEL KANT

Science is organized knowledge. Wisdom is organized life.

In law a man is guilty when he violates the rights of others. In ethics he is guilty if he only thinks of doing so


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

Experience without theory is blind, but theory without experience is mere intellectual play.

Morality is not the doctrine of how we may make ourselves happy, but how we may make ourselves worthy of happiness.

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.
It is beyond a doubt that all our knowledge begins with experience.

To be is to do.

If man makes himself a worm he must not complain when he is trodden on.

Always recognize that human individuals are ends, and do not use them as means to your end.

I had therefore to remove knowledge, in order to make room for belief.

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

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

Out of timber so crooked as that from which man is made nothing entirely straight can be carved.

May you live your life as if the maxim of your actions were to become universal law.

Seek not the favor of the multitude; it is seldom got by honest and lawful means. But seek the testimony of few; and number not voices, but weigh them.

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

All our knowledge begins with the senses, proceeds then to the understanding, and ends with reason. There is nothing higher than reason.

But although all our knowledge begins with experience, it does not follow that it arises from experience.

It is not God's will merely that we should be happy, but that we should make ourselves happy.

Happiness is not an ideal of reason, but of imagination.

Immaturity is the incapacity to use one's intelligence without the guidance of another.

Metaphysics is a dark ocean without shores or lighthouse, strewn with many a philosophic wreck.
Metaphysics is a dark ocean without shores or lighthouse, strewn with many a philosophic wreck.