1. The essence of mathematics lies in its freedom. ——Cantor

2. Questions are the heart of mathematics. ——P.R. Halmos

3. Mathematics is God’s symbol for describing nature. ——Hegel

4. One-half proof is equal to 0. ——Gauss

5. Thinking begins with doubt and surprise. ——Aristotle

6. Mathematics is symbols plus logic. ——Russell

7. Mathematics is the king of science. ——Gauss

8. Genius? Please look at my elbows. ——Ramanuyan

9. It would be better to have less, but better. ——Gauss

10. Imagination is more important than knowledge. ——Einstein