Everything you’ve ever wanted is on the other side of fear.
The blood in the animal body is impelled in a circle, and is in a state of ceaseless motion.
The most profound ideas in mathematics often arise from the simplest observations.
I have suffered and despaired and known death and I am glad that I am in this great world.
有人问我什么是幸福，我回答说：不奢求非必需之物。