学习数学的唯一方法就是做数学。
True leaders don't command others what to do; they inspire their potential.
I have a dream that one day this nation will rise up and live out the true meaning of its creed.
It's not about how hard you hit. It's about how hard you can get hit and keep moving forward.
The only thing that stands between you and your dream is the will to try and the belief that it is actually possible.
