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数学中最重要的技能是清晰思考的能力。
The most important skill in mathematics is the ability to think clearly.
Think wrongly, if you please, but in all cases, think for yourself.
Behind every great fortune there is a crime.
最强大的工具是那些赋予他人力量的工具。
Avoid hitting the snooze button. That’s just training you to oversleep.
当你怀疑自己能否飞翔的那一刻,你就永远失去了飞翔的能力。