Psychological truth is what stands the test of life.

The only way to achieve true freedom is through self-discipline.

智慧是避免做工作却能完成工作的能力。

Learning is the process of modifying symbolic structures to improve performance.

True progress comes when we challenge the status quo and embrace change.

皱纹应当只是微笑留下的印记。

过去不必定义未来。