过去是一个陌生的国度；他们做事的方式不同。

当一盏灯熄灭时，比它从未亮起时要黑暗得多。

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.

追随你天然的好奇心，解决自己的问题，学习只是相关的副产品。

我们无法选择自己的命运，但我们可以选择如何面对它。