Mathematics is not a careful march down a well-cleared highway, but a journey into a strange wilderness, where the explorers often get lost.
The tree of liberty must be refreshed from time to time with the blood of patriots and tyrants.
"To write is to breathe, to live, to exist beyond the boundaries of time."
If you are ever in trouble, don’t try to be brave, just run away.
You have to trust the process and believe in yourself.