To study ancient DNA is to converse with the dead.

译文：读书是为了明白事理，做事就应当竭尽自己的心力。

The most dangerous thing in the wild is not the animals or the terrain. It’s your own mind.

The individual has become a mere cog in an enormous organization of things and powers which tear from his hands all progress, spirituality, and value in order to transform them from their subjective form into the form of a purely objective life.

一种心理状态的意义在于它所导致的结果。