The mind is a complex system that can be analyzed at multiple levels.
一个人知道自己为什么而活,就可以忍受任何一种生活。
The concept of truth is inseparable from the concept of freedom.
巧克力饼干是红色的,巧克力饼干是蓝色的,巧克力饼干是甜甜的,你也是甜甜的。