The essence of mathematics lies in its freedom.

君子这样来造船车，所以属下都效法他，因此他的人民就会饥寒交迫，不得不做奸邪的事。奸邪的事情一多，刑罚就重，刑罚一重，国家就混乱。国君若真的希望天下太平而不希望天下大乱的话，如果要做船车，就不能不节俭。 

我认为，一个人应该认识到现实，即使他不喜欢它；事实上，尤其是当他不喜欢它的时候。

Character is not something that you are born with and can't change, like your fingerprints. It's something you weren't born with and must take responsibility for forming.

最可持续的解决方案是那些既有利于企业又有利于地球的方案。