Abraham Lincoln: “My great concern is not whether you have failed, but whether you are content with your failure.”

If the end brings me out all right, what is said against me won't amount to anything.

If I were to try to read, much less answer, all the attacks made on me, this shop might as well be closed for any other business.

As a general rule I abstain from reading the reports of attacks upon myself, wishing not to be provoked by that to which I cannot properly offer an answer.

Important principles may and must be inflexible.