目标不是完美,而是进步。
The goal is not perfection but progress.
To understand the arithmetic of algebraic varieties is to understand the symmetries hidden within them.
教育的目的不是使年轻人在任何一门科学上都变得完美,而是要打开和培养他们的思维,使他们在将来学习任何科学时都能胜任。