To be brave is to love someone unconditionally, without expecting anything in return.
The space between things is often more important than the things themselves.
If you never want to be criticized, for goodness' sake don't do anything new.
The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion.
The power of mathematics comes from its ability to abstract and generalize, turning specific problems into universal truths.