比喻要有长期坚持和忍耐的毅力。

"The only way to do great work is to love what you do."

阅读使人充实，谈论使人机敏，写作使人精确。

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.

Everything is what it is， and not another thing.

I have not told the half of what I saw.