When we were children, we used to think that when we were grown-up we would no longer be vulnerable. But to grow up is to accept vulnerability. . . . To be alive is to be vulnerable."

"Truth is eternal, knowledge is changeable. It is disastrous to confuse them."

"With each book I write, I become more and more convinced that [the books] have a life of their own, quite apart from me."

"To create a work of art, great or small, is work, hard work, and work requires discipline and order."

"We have much to be judged on when he comes, slums and battlefields and insane asylums, but these are the symptoms of our illness and the result of our failures in love."