学习数学的最佳方式就是动手做数学。
The best way to learn mathematics is to do mathematics.
One has to pay dearly for immortality;one has to die several times while still alive.
今天种植的每一棵树都是留给后代的遗产。
The most common form of despair is not being who you are.
True leadership is about empowering others to achieve their full potential.
任何经济体中最重要的资源是其人民的才能。如果我们不发展这种才能,我们就不会成功。
But there is no such liberty as the power to dispose of what we please.