A lie is the abandonment and, as it were, the annihilation of the dignity by man.

Enlightenment is the liberation of man from his self-caused state of minority... Supere aude! Dare to use your own understanding!is thus the motto of the Enlightenment.

Act only according to that maxim whereby you can at the same time will that it should become a universal law.

When I could have used a wife, I could not support one; and when I could support one, I no longer needed any

It is through good education that all the good in the world arises.

Freedom can never be comprehended, nor even can insight into it be gained.

Give me matter, and I will construct a world out of it!