We are all unreliable narrators of our own lives.
我们都是自己人生不可靠的叙述者。
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.
更改规格以适合程序要容易得多，反之亦然。
生命的历史是无尽实验的故事。
Parents wonder why the streams are bitter, when they themselves have poisoned the fountain.