计算复杂性理论的发展向我们展示了并非所有问题都是平等的。
译文：严以律己是做人的根本，要想守住已成就的事业就要时刻记住创业时的艰辛。赏析：以责人之心责己，以恕己之心恕人，人生很多祸患就会减少。处处苛责别人而宽恕自己，是不能服众的，只会让双方的矛盾加深。人在富贵发达后，要有居安思危的意识，只有这样，才能永远保住辛苦创下的家业。
In republican governments, men are all equal; equal they are also in despotic governments: in the former, because they are everything; in the latter, because they are nothing.
I strongly believe that missionaries make better products. They care more. For a missionary， it's not just about the business. There has to be a business， and the business has to make sense， but that's not why you do it. You do it because you have something meaningful that motivates you.
语言是存在之家，人在其中栖居。
Water is the source of life and the force of destruction.