Doubt is the beginning of wisdom, not its enemy.
怀疑是智慧的开端,而非敌人。
People won't have time for you if you are always angry or complaining.
数学的美在于它能够用一种既精确又普遍的语言来描述宇宙。
你不是那些不认识你或不关心你的人的看法的总和。
To write a good love letter, you ought to begin without knowing what you mean to say, and to finish without knowing what you have written.