Immanuel Kant Quotes

Most popular Immanuel Kant Quotes

I ought, therefore I can.
— Immanuel Kant
Happiness is not an ideal of reason but of imagination.

happiness imagination

Science is organized knowledge. Wisdom is organized life.
— Immanuel Kant
Philosophy is the knowledge of the limits of our knowledge.
— Immanuel Kant
The human heart refuses to believe in a universe without a purpose.
— Immanuel Kant

determination

He who is cruel to animals becomes hard also in his dealings with men.
— Immanuel Kant
May you live your life as if the maxim of your actions were to become universal law.
— Immanuel Kant
By a lie a human being throws away and, as it were, annihilates his dignity as a human being.

lying

In every department of physical science there is only so much science, properly so-called, as there is mathematics.
— Immanuel Kant

science mathematics

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

morals happiness

All the interests of my reason, speculative as well as practical, combine in the three following questions: 1. What can I know? 2. What ought I to do? 3. What may I hope?
— Immanuel Kant

learning action hope

Intuition and concepts constitute ... the elements of all our knowledge, so that neither concepts without an intuition in some way corresponding to them, nor intuition without concepts, can yield knowledge.
— Immanuel Kant

knowledge intuition

Two things fill the mind with ever increasing wonder and awe the more often and the more intensely the mind of thought is drawn to them: the starry heavens above me and the moral law within me. Morality is not properly the doctrine of how we may make ourselves happy, but how we may make ourselves worthy of happiness.