"The best way to learn mathematics is to do mathematics."

La libertad es un hábito que se adquiere ejerciéndola.

We must listen to the scientists and act on their warnings about marine ecosystems.

A pessimist sees the difficulty in every opportunity; an optimist sees the opportunity in every difficulty.

I'm not going to sit here and say I'm a role model or anything, but I do think I have a responsibility.

商业上的成功来自于比任何人都更好地理解客户。