1) The motive force of mathematical invention is not reasoning, but imagination. -Demonstration
2) Mathematics has made an important contribution to the observation of nature. It explains the simple primitive elements in the regular structure, with which celestial bodies are built. Kepler
3) The essence of mathematics lies in freedom. cornel
4) The Queen of Mathematics and Science; Number theory, the queen of mathematics. -Gauss
5) Numbers rule the universe. Pythagoras