True spirituality is about nothing else than learning to die.

The only limits you have are the ones you set for yourself.

The desire for recognition, the thymotic part of the soul, is the most political part of the human personality because it is what drives people to want to be recognized as superior to others.

大脑是一种计算机。

可持续林业不仅仅是砍伐树木，更是确保未来有森林可供珍惜。

组织的质量由其人员的质量决定。