Mental processes are tools for mastering the environment.
安达卢西亚的光不是画出来的,而是写出来的。
You have to be comfortable with being uncomfortable if you want to make progress in mathematics.
没有社会进步的经济增长会让大多数人仍然处于贫困之中,而少数特权阶层则享受日益增长的丰裕。