The tree of liberty must be refreshed from time to time with the blood of patriots and tyrants.

Evolution is a slow process.

Innovation is not the goal, solving real user needs is fundamental.

I never buy a stock unless I can see a clear path to a 50% return.

【译文】要像瓶口那样不轻易开口，要像城防那样时时戒备。宁愿让别人辜负我，决不让自己辜负别人。做事要三思而后行，首先不要违背自己的良心。活着的老虎尚可以靠近，心地恶毒的人千万不能亲近。在你跟前说别人坏话的人，就是制造是非的小人。