人们只看到自己想看的东西。
我的一生都在与恐惧和焦虑作斗争。
Innovation is not about saying yes to everything. It's about saying no to all but the most crucial features.
Education does not take root in the soul unless it goes deep.
But man is not made for defeat. A man can be destroyed but not defeated.
We teach a subject not to produce little living libraries on that subject, but rather to get a student to think mathematically for himself.
Conscience and cowardice are really the same things.
The greatest gift you can give someone is your time and your voice.