The beauty of mathematics is that it is one of the few areas of human endeavor where absolute truth can be known.
过去总是紧张的,未来是完美的。
定价的艺术不在于设定价格,而在于设计揭示真实价值的过程。
恐惧只是我们对自己讲的故事。
The man who is fit to handle pig iron is not fit to handle the management of pig iron.