I also learned that when I tried to come up with "what I wished I had written," the answer wasn't a book. It was a poem by Stephen Crane.
A man said to the universe:
"Sir I exist!"
"However," replied the universe,
"The fact has not created in me
A sense of obligation."
From experience I know that the most difficult thing in the world is to say everything you want to say concisely. But this poem does it. I've never seen the feeling of one person's general insignificance so tightly and neatly packaged. Anytime I begin to sulk about my problems, a quick remembrance of this poem makes me realize that none of it is worth the worry.