The essential element in the black art of obscurantism is not that it wants to darken individual understanding, but that it wants to blacken our picture of the world, and darken our idea of existence.

Dare only to believe in yourselves- in yourselves and in your inward parts! He who does not believe in himself always lies.

To do great things is difficult; but to command great things is more difficult.

It is true, there could be a metaphysical world; the absolute possibility of it is hardly to be disputed. We behold all things through the human head and cannot cut off this head; while the question nonetheless remains what of the world would still be there if one had cut it off.

How can those who live in the light of the day possibly comprehend the depths of the night?

Only when he has attained a final knowledge of all things will man have come to know himself. For things are only the boundaries of man.

The word 'Christianity' is already a misunderstanding - in reality there has been only one Christian, and he died on the Cross.