The past is a foreign country, but we are all its citizens.

当你经历生活给我们所有人带来的挫折时，改变你对自己说的那些破坏性的话是乐观的核心技能。

To be free is not merely to cast off one's chains, but to live in a way that respects and enhances the freedom of others.

除非不再尝试，否则就没有失败。