Paul Erdos

“Before, when I looked at a piece of blank paper my mind was filled with ideas. Now all I see is a blank piece of paper”

“I'll tell you once,and I'll tell you again.There's always a primebetween n and 2n.”

“A mathematician is a device for turning coffee into theorems”

“[When asked why are numbers beautiful?]It’s like asking why is Ludwig van Beethoven’s Ninth Symphony beautiful. If you don't see why, someone can't tell you. I know numbers are beautiful. If they aren't beautiful, nothing is.”