Simplicity is not simple to achieve.

Every experiment, even if it fails, teaches us something valuable.

杀死他的父亲然后奖赏他的儿子，与吃他的儿子然后再奖赏他的父亲有什么不同呢？ 

In teaching history， there should be extensive discussion of personalities who benefited mankind through independence of character and judgement.

我们写的每一个字都是朝着理解自己和周围世界迈出的一步。