The whole conviction of my life now rests upon the belief that loneliness, far from being a rare and curious phenomenon, peculiar to myself and to a few other solitary men, is the central and inevitable fact of human existence.

The best way to be happy is to make others happy.

 人类的理解一旦采纳了一个观点，就会倾向于将其他事物引向支持和一致。