1, the essence of mathematics is its freedom. -Cantor
2. The problem is the core of mathematics. -P.R. halmos
3. Mathematics is the symbol that God describes nature. -Hegel
4. Half of the proofs are equal to 0. Gauss
5. Thinking begins with doubt and surprise. -Aristotle
6. Mathematics is symbol plus logic. Bertrand Russell
7. Mathematics is the king of science. Gauss
8. Genius? Please look at my elbow. -Ramanuyan