There is but one world common for those who are awake, but when men are asleep, each turns away into a world of his own.
Change alone is unchanging.
All things come into being through opposition and all are in flux like a river
The way up and the way down are one and the same.
Religion is a disease, but it is a noble disease.
The world is nothing but a great desire to live and a great dissatisfaction with living.