"It matters if you just don't give up" - Stephen Hawking

"D'oh." - Homer Simpson

“We are just an advanced breed of monkeys on a minor planet of a very average star. But we can understand the Universe. That makes us something very special.” - Stephen Hawking

“Never shall I forget the days I spent with you. Continue to be my friend, as you will always find me yours.” - Ludwig van Beethoven

“Music is the mediator between the spiritual and the sensual life.” - Ludwig van Beethoven

“What you are, you are by accident of birth; what I am, I am by myself. There are and will be a thousand princes; there is only one Beethoven.” - Ludwig van Beethoven

"Equations are just the boring part of mathematics. I attempt to see things in terms of geometry." - Stephen Hawking

“I pay no attention whatever to anybody's praise or blame. I simply follow my own feelings.” - Wolfgang Amadeus Mozart

"The unexamined life is not worth living." - Platon

“I thank my God for graciously granting me the opportunity of learning that death is the key which unlocks the door to our true happiness.” - Wolfgang Amadeus Mozart

"Amicus Plato, amicus Aristoteles, magis amica veritas." - Isaac Newton

"God created everything by number, weight and measure." - Isaac Newton

“I think computer viruses should count as life. I think it says something about human nature that the only form of life we have created so far is purely destructive. We've created life in our own image.” - Stephen Hawking