一个公开的民意测验无法代替思考。
You cannot teach a man anything, you can only help him to find it for himself.
分布式系统是指一个系统中,即使是你不知道存在的计算机发生故障,也可能导致你自己的计算机无法使用。
A philosophical problem has the form: 'I don't know my way about.'