I profess both to learn and to teach anatomy, not from books but from dissections.

"The truth is a mirror, and the mirror is a game."

If you don’t drive your business, you will be driven out of business.

When men are most sure and arrogant they are commonly most mistaken， giving views to passion without that proper deliberation which alone can secure them from the grossest absurdities.

The best way to learn mathematics is to do mathematics.