The world is a book, and those who do not travel read only one page.
Chance is perhaps the pseudonym of God when He does not wish to sign His name.
Mathematics is not a spectator sport—you have to engage with it to appreciate its beauty.
The moment you give up is the moment you let someone else win.
The revolution is not an apple that falls when it is ripe. You have to make it fall.
"The truth is rarely pure and never simple."