“Self-discipline is the ability to make yourself do what you should do, when you should do it, whether you feel like it or not.”

“Know what you want to do, hold the thought firmly, and do every day what should be done, and every sunset will see you that much nearer the goal.”

“Cultivate only the habits that you are willing should master you.”

“It is easy to get everything you want, provided you first learn to do without the things you cannot get.”

“Do not take life too seriously. You will never get out of it alive.”

“Never explain―your friends do not need it and your enemies will not believe you anyway.”

“It does not take much strength to do things, but it requires a great deal of strength to decide what to do.”