The only way to learn mathematics is to do mathematics.
学习数学的唯一方法就是做数学。
When someone tells you something is wrong， they’re usually right. When someone tells you how to fix it， they’re usually wrong.
如果你想走得快，独自前行；如果你想走得远，结伴同行。
如果你不愿意学习，没人能帮你。如果你决心学习，没人能阻止你。