Meditation: Thomas Jefferson on the Importance of Moral Conduct

Give up money, give up fame, give up science, give the earth itself and all it contains rather than do an immoral act. And never suppose that in any possible situation, or under any circumstances, it is best for you to do a dishonorable thing, however slightly so it may appear to you. Whenever you are to do a thing, though it can never be known but to yourself, ask yourself how you would act were all the world looking at you, and act accordingly. Encourage all your virtuous dispositions, and exercise them whenever an opportunity arises, being assured that they will gain strength by exercise, as a limb of the body does, and that exercise will make them habitual. From the practice of the purest virtue, you may be assured you will derive the most sublime comforts in every moment of life, and in the moment of death.