15 Thomas Jefferson Quotes on Ethics

Thomas Jefferson quotes on ethics

3. A lively and lasting sense of filial duty is more effectually impressed on the mind of a son or daughter by reading King Lear, than by all the dry volumes of ethics, and divinity, that ever were written.

11. He who permits himself to tell a lie once, finds it much easier to do it a second and third time, till at length it becomes habitual; he tells lies without attending to it, and truths without the world's believing him. This falsehood of tongue leads to that of the heart, and in time depraves all its good dispositions.

14. The two principles on which our conduct towards the Indians should be founded, are justice and fear. After the injuries we have done them, they cannot love us . . . .

46. There is no act, however virtuous, for which ingenuity may not find some bad motive.

64. Of all the systems of morality, ancient or modern, which have come under my observation, none appear to me so pure as that of Jesus. He who follows this steadily need not, I think, be uneasy, although he cannot comprehend the subtleties and mysteries erected on his doctrines by those who, calling themselves his special followers and favorites, would make him come into the world to lay snares for all understandings but theirs. These metaphysical heads, usurping the judgment seat of God, denounce as his enemies all who cannot perceive the Geometrical logic of Euclid in the demonstrations of St. Athanasius., that three are one, and one is three; and yet that the one is not three nor the three one.

70. If we did a good act merely from love of God and a belief that it is pleasing to Him, whence arises the morality of the Atheist? ...Their virtue, then, must have had some other foundation than the love of God.

79. Self-interest, or rather self-love, or egoism, has been more plausibly substituted as the basis of morality. But I consider our relations with others as constituting the boundaries of morality. With ourselves, we stand on the ground of identity, not of relation, which last, requiring two subjects, excludes self-love confined to a single one. To ourselves, in strict language, we can owe no duties, obligation requiring also two parties. Self-love, therefore, is no part of morality. Indeed, it is exactly its counterpart.

83. I, too, have made a wee-little book from the same materials, which I call the Philosophy of Jesus; it is a paradigma of his doctrines, made by cutting the texts out of the book, and arranging them on the pages of d blank book, in a certain order of time or subject. A more beautiful or precious morsel of ethics I have never seen; it is a document in proof that I am a real Christian, that is to say, a disciple of the doctrines of Jesus, very different from the Platonists, who call me infidel and themselves Christians and preachers of the gospel, while they draw all their characteristic dogmas from what its author never said nor saw. They have compounded from the heathen mysteries a system beyond the comprehension of man, of which the great reformer of the vicious ethics and deism of the Jews, were he to return on earth, would not recognize one feature.

85. The system of banking we have both equally and ever reprobated. I contemplate it as a blot left in all our Constitutions, which, if not covered, will end in their destruction, which is already hit by the gamblers in corruption, and is sweeping away in its progress the fortunes and morals of our citizens. Funding I consider as limited, rightfully, to a redemption of the debt within the lives of a majority of the generation contracting it; every generation coming equally, by the laws of the Creator of the world, to the free possession of the earth he made for their subsistence, unincumbered by their predecessors, who, like them, were but tenants for life.

95. Lay down true principles and adhere to them inflexibly. Do not be frightened into their surrender by the alarms of the timid, or the croakings of wealth against the ascendency of the people.

104. As you say of yourself, I too am an Epicurian. I consider the genuine (not the imputed) doctrines of Epicurus as containing everything rational in moral philosophy which Greece and Rome have left us.

108. Among the sayings and discourses imputed to him [Jesus] by his biographers, I find many passages of fine imagination, correct morality, and of the most lovely benevolence; and others again of so much ignorance, so much absurdity, so much untruth, charlatanism, and imposture, as to pronounce it impossible that such contradictions should have proceeded from the same being. I separate, therefore, the gold from the dross; restore to Him the former, and leave the latter to the stupidity of some, and roguery of others of His disciples. Of this band of dupes and impostors, Paul was the great Coryphaeus, and first corruptor of the doctrines of Jesus. These palpable interpolations and falsifications of His doctrines, led me to try to sift them apart.

143. He who made us would have been a pitiful bungler, if he had made the rules of our moral conduct a matter of science. For one man of science, there are thousands who are not. What would have become of them? Man was destined for society. His morality, therefore, was to be formed to this object. He was endowed with a sense of right and wrong, merely relative to this.

144. The moral sense, or conscience, is as much a part of man as his leg or arm. It is given to all human beings in a stronger or weaker degree, as force of members is given them in a greater or less degree. It may be strengthened by exercise, as may any particular limb of the body. This sense is submitted, indeed, in some degree, to the guidance of reason; but it is a small stock which is required for this: even a less one than what we call common sense. State a moral case to a ploughman and a professor. The former will decide it as well, and often better than the latter, because he has not been led astray by artificial rules.

145. Above all things, lose no occasion of exercising your dispositions to be grateful, to be generous, to be charitable, to be humane, to be true, just, firm, orderly, courageous, &c. Consider every act of this kind, as an exercise which will strengthen your moral faculties and increase your worth.