有时候你可能觉得自己不够好,但你是足够的。
The world is not a mere sum of sensations, but an organized whole.
障碍越大,克服它的荣耀就越大。
The study of mathematics is like air or water to the development of science.
解决问题通常需要重新构建一个人对情境的心理表征。
Leadership is about making tough decisions today that will benefit generations to come.