The capacity of the human mind for formulating and solving complex problems is very small compared with the size of the problems whose solution is required for objectively rational behavior in the real world.

The way positive reinforcement is carried out is more important than the amount.

我认为生活中最重要的事情是忠于自己。

The poet is the mirror of the world’s sorrow.

孤独的人有他们自己的泥沼。