"Be careful about reading health books. You..." - Quote by Mark Twain

“Perfect grammar - persistent, continuous, sustained - is the fourth dimension, so to speak; many have sought it, but none has found it.”

“I do not like an injurious lie, except when it injures somebody else.”

“I am not given to exaggeration, and when I say a thing I mean it.”

“When we read a book, our most essential trait - imagination - is given the opportunity to soar.”

“Books that are books are all that you want, and there are but a half dozen in any thousand.”

“To stand in a great bookshop crammed with books so new that their pages almost stick together, and the gilt on their backs is still fresh, has an excitement no less delightful than the old excitement of the second-hand bookstall.”

“I think when smallpox was eliminated, the whole world got pretty excited about that because it’s just such a dramatic success.”

“I admit that thoughts influence the body.”

“Once you realize that a certain kind of food makes you sick, would you carry on eating that food and keep on asserting that it's okay to be sick?”