The greatest photographers are those who have learned to see the world as it is, and then to see it as it might be.

教育不能改变世界。教育改变人。人改变世界。

The peculiar evil of silencing the expression of an opinion is that it is robbing the human race； posterity as well as the existing generation； those who dissent from the opinion， still more than those who hold it.

模糊逻辑是一种通过让机器能够处理不确定性和不精确性来使其更加智能的方法。