几何学是独特且永恒的，是上帝心智的反映。

心理学必须建立在直接经验和内省的基础上。

Every problem in NP can be reduced to the satisfiability problem, which is the cornerstone of computational complexity theory.

Learn to know and value the praise which is worth having, and to excite the admiration of excellent people by being modest as well as pretty, Meg.

天有多高，地有多厚，通过实践才能得知。荀子强调实际行动，而非“坐而论道”。在自强不息的行动中，才能获得真知，发掘自己未知的潜能。

我认为对自己有幽默感很重要。