“Life," said Emerson, "consists in what a man is thinking all day." If that be so, then my life is nothing but a big intestine. I not only think about food all day, but I dream about it at night.”

“Life consists of what man is thinking about all day.”

“...was one of the best days of my life, a day during which I lived my life and didn't think about my life at all.”

“It was one of the best days of my life, a day during which I lived my life and didn't think about my life at all.”

“I once read the sentence 'I lay awake all night with a toothache, thinking about the toothache an about lying awake.' That's true to life. Part of every misery is, so to speak, the misery's shadow or reflection: the fact that you don't merely suffer but have to keep on thinking about the fact that you suffer. I not only live each endless day in grief, but live each day thinking about living each day in grief.”

“The wise man thinks about his troubles only when there is some purpose in doing so; at other times he thinks about other things, or, if it is night, about nothing at all.”