“Men are qualified for civil liberty in exact proportion to their disposition to put moral chains upon their own appetites, — in proportion as their love to justice is above their rapacity, — in proportion as their soundness and sobriety of understanding is above their vanity and presumption, — in proportion as they are more disposed to listen to the counsels of the wise and good, in preference to the flattery of knaves.”

Speech at the Charleston Bar Dinner (May 10, 1847); reported in Edward Everett, ed., The Works of Daniel Webster (1851), Vol. II, p. 393

Essay on the Principle of Population (1798; rev. through 1826)

Draft for a Statement of Human Obligation (1943)
Context: The proportions of good and evil in any society depend partly upon the proportion of consent to that of refusal and partly upon the distribution of power between those who consent and those who refuse.
If any power of any kind is in the hands of a man who has not given total, sincere, and enlightened consent to this obligation such power is misplaced.
If a man has willfully refused to consent, then it is in itself a criminal activity for him to exercise any function, major or minor, public or private, which gives him control over people's lives. All those who, with knowledge of his mind, have acquiesced in his exercise of the function are accessories to the crime.
Any State whose whole official doctrine constitutes an incitement to this crime is itself wholly criminal. It can retain no trace of legitimacy.
Any State whose official doctrine is not primarily directed against this crime in all its forms is lacking in full legitimacy.
Any legal system which contains no provisions against this crime is without the essence of legality. Any legal system which provides against some forms of this crime but not others is without the full character of legality.
Any government whose members commit this crime, or authorize it in their subordinates, has betrayed its function.

Source: Black Skin, White Masks

Section X: Of Miracles; Part I. 87
An Enquiry Concerning Human Understanding (1748)
Context: In our reasonings concerning matter of fact, there are all imaginable degrees of assurance, from the highest certainty to the lowest species of moral evidence. A wise man, therefore, proportions his belief to the evidence.

1860s, Speeches to Ohio Regiments (1864), Speech to the One Hundred Sixty-fourth Ohio Regiment
Context: I say this in order to impress upon you, if you are not already so impressed, that no small matter should divert us from our great purpose. There may be some irregularities in the practical application of our system. It is fair that each man shall pay taxes in exact proportion to the value of his property; but if we should wait before collecting a tax to adjust the taxes upon each man in exact proportion with every other man, we should never collect any tax at all. There may be mistakes made sometimes; things may be done wrong while the officers of the Government do all they can to prevent mistakes. But I beg of you, as citizens of this great Republic, not to let your minds to carried off from the great work we have before us. This struggle is too large for you to be diverted from it by any small matter.

Source: The Wealth of Nations (1776), Book V, Chapter II, Part II, Article I, p. 911.
Context: The necessaries of life occasion the great expense of the poor. They find it difficult to get food, and the greater part of their little revenue is spent in getting it. The luxuries and vanities of life occasion the principal expense of the rich, and a magnificent house embellishes and sets off to the best advantage all the other luxuries and vanities which they possess. A tax upon house-rents, therefore, would in general fall heaviest upon the rich; and in this sort of inequality there would not, perhaps, be anything very unreasonable. It is not very unreasonable that the rich should contribute to the public expense, not only in proportion to their revenue, but something more than in that proportion.

Source: The Noonday Demon: An Atlas of Depression

Pt. 2, Ch. 7
Papa Hemingway (1966)