It must be remembered that while sympathy with joy intensifies the sum of joy in the world., sympathy with pain does not really diminish the amount of pain. It may make man better able to endure evil, but the evil remains.

天下没有不能教化的人，就害怕不诚心；天下没有不能干成的事，就怕立志不坚定。

人类最后的自由是在任何特定环境下选择自己态度的能力。