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.
建立成功企业的关键是为客户创造价值。
一件事情都不能做到有始有终，就不要去操持其他的事情；一物也不明白，就不要追求博闻广记。