数学不仅仅是抽象理论的集合，而是描述宇宙的语言。

I always say you could publish my trading rules in the newspaper and no one would follow them. The key is consistency and discipline.

Every ton of coal we extract must create maximum value with minimum environmental impact.

The time which we have at our disposal every day is elastic; the passions that we feel expand it, those that we inspire contract it; and habit fills up what remains.

I think that’s the single best piece of advice: constantly think about how you could be doing things better and questioning yourself.