我们都是自己思想的囚徒，只是有些人建造了更坚固的牢笼。
You can't let praise or criticism get to you. It's a weakness to get caught up in either one.
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.
"The only thing necessary for the triumph of evil is for good men to do nothing."