Science is organized knowledge. Wisdom is organized life.

Immanuel Kant

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

Immanuel Kant

Ingratitude is the essence of vileness.

Immanuel Kant

A categorical imperative would be one which represented an action as objectively necessary in itself, without reference to any other purpose.

Immanuel Kant

Without man and his potential for moral progress, the whole of reality would be a mere wilderness, a thing in vain, and have no final purpose.

Immanuel Kant

Human beings are never to be treated as a means but always as ends.

Immanuel Kant

Give a man everything he wants and at that moment everything is not everything.

Immanuel Kant

Look closely. The beautiful may be small.

Immanuel Kant

We can judge the heart of a man by his treatment of animals.

Immanuel Kant