The only way to learn mathematics is to do mathematics.
学习数学的唯一方法就是做数学。
引用沙皇亚历山大三世的名言并多次公开重申
你不必拥有职位才能成为领导者。
"Sometimes the hardest part isn't letting go but learning to start over."
Overfishing will only turn the ocean into a desert, we must learn restraint.