I still live, I still think: I still have to live, for I still have to think.

The life of a nation is the fullness of the measure of its will to live.

I assess the power of a will by how much resistance, pain, torture it endures and knows how to turn to its advantage.

To forget one's purpose is the commonest form of stupidity.

For what purpose humanity is there should not even concern us: why you are here, that you should ask yourself: and if you have no ready answer, then set for yourself goals, high and noble goals, and perish in pursuit of them!

A vocation is the backbone of life.