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

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

Immanuel Kant

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

Immanuel Kant

Science is organized knowledge. Wisdom is organized life.

Immanuel Kant

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

Immanuel Kant

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

Immanuel Kant