Pessimism leads to weakness, optimism to power.
Everything is connected, everything.
The meaning of our existence is not invented by ourselves, but rather detected.
数学不仅仅是关于数字和方程；它是关于理解宇宙中一切事物的模式和结构。
国家一定要有直言进谏的臣子，上级必须有敢于提出反对意见的下级，议论国政的人不停止，各种不同政见的人相互辩论，才可以长久保存国家，使国家兴盛强大。也就是说言论自由是民众的基本权利，每个人都可以提出不同的政见，民众有平等参与政治的权利。
It is not, nor cannot come to good. But break, my heart, for I must hold my tongue.