我认为能够不过于严肃地对待自己是很重要的。
I think it's important to be able to not take yourself too seriously.
永远不要低估人类精神的力量。它可以克服最不可能的困难。
The study of mental processes requires both experimental and comparative methods.
The key to successful investing is to have a long-term perspective and to stick to your investment plan.