梦是开设在灵魂深处最隐蔽角落的小小隐秘窗口，它所通向的宇宙夜空是心灵性的，在自我-意识出现之前很久就已如此，而无论我们的自我-意识的疆界如何扩展，它将始终通向心灵的夜空。

The natural effort of every individual to better his own condition， when suffered to exert itself with freedom and security， is so powerful a principle that it is alone， and without any assistance， not only capable of carrying on the society to wealth and prosperity but of surmounting a hundred impertinent obstructions with which the folly of human laws too often encumbers its operations.

Every performance is a new beginning.

The power of mathematics lies in its generality and abstraction.

你拥有的最强武器是你的头脑。好好训练它。