"As soon as man began considering himself the source of the meaning of the world and not merely a part of it, the world began to lose its meaning."

"The true measure of a man is not how he behaves in moments of comfort and convenience, but how he stands at times of controversy and challenge."

"The world is not a machine, it is a mystery."

"The only way to achieve freedom is to fight for it."

"The greatest prison is the one we build for ourselves."