The real challenge is to make something complex appear simple.

The computing scientist's main challenge is not to get confused by the complexities of his own making.

我不介意犯错，我只是不想一直错下去。

自然将人类置于两位至高无上的主人——痛苦和快乐的统治之下。

钱财地位，往往成为丛集怨恨的渊薮；才华能力，常常就是招致灾祸的根由；名望声誊，往往成为引来毁谤的媒介；欢欣快乐，常常就是走向悲凉的开始。