“One good Man may take another's Word, if they so agree, but a whole Nation ought never to trust to any Honesty, but what is built upon Necessity; for unhappy is the People, and their Constitution will be ever precarious, whose Welfare must depend upon the Virtues and Consciences of Ministers and Politicians.”

Interview for London Weekend Television's Weekend World, quoted in The Times (11 February 1980), p. 2
1980s

Of Envy
Essays (1625)
Context: A man that hath no virtue in himself, ever envieth virtue in others. For men's minds, will either feed upon their own good, or upon others' evil; and who wanteth the one, will prey upon the other; and whoso is out of hope, to attain to another's virtue, will seek to come at even hand, by depressing another's fortune.

Others

Fifth Lincoln-Douglas Debate http://www.bartleby.com/251/pages/page328.html (7 October 1858), regarding Stephen A. Douglas and the antebellum Democratic Party's claim that African Americans were exempt from Thomas Jefferson's assertion that all men were created equal.
1850s, Lincoln–Douglas debates (1858)
Context: The Judge has alluded to the Declaration of Independence, and insisted that negroes are not included in that Declaration; and that it is a slander upon the framers of that instrument, to suppose that negroes were meant therein; and he asks you: Is it possible to believe that Mister Jefferson, who penned the immortal paper, could have supposed himself applying the language of that instrument to the negro race, and yet held a portion of that race in slavery? Would he not at once have freed them? I only have to remark upon this part of the Judge's speech, and that, too, very briefly, for I shall not detain myself, or you, upon that point for any great length of time, that I believe the entire records of the world, from the date of the Declaration of Independence up to within three years ago, may be searched in vain for one single affirmation, from one single man, that the negro was not included in the Declaration of Independence; I think I may defy Judge Douglas to show that he ever said so, that Washington ever said so, that any President ever said so, that any member of Congress ever said so, or that any living man upon the whole earth ever said so, until the necessities of the present policy of the Democratic Party, in regard to slavery, had to invent that affirmation. And I will remind Judge Douglas and this audience that while Mister Jefferson was the owner of slaves, as undoubtedly he was, in speaking upon this very subject he used the strong language that “he trembled for his country when he remembered that God was just;” and I will offer the highest premium in my power to Judge Douglas if he will show that he, in all his life, ever uttered a sentiment at all akin to that of Jefferson.

1900s, A Square Deal (1903)
Context: The welfare of each of us is dependent fundamentally upon the welfare of all of us, and therefore in public life that man is the best representative of each of us who seeks to do good to each by doing good to all; in other words, whose endeavor it is not to represent any special class and promote merely that class's selfish interests, but to represent all true and honest men of all sections and all classes and to work for their interests by working for our common country. We can keep our government on a sane and healthy basis, we can make and keep our social system what it should be, only on condition of judging each man, not as a member of a class, but on his worth as a man. It is an infamous thing in our American life, and fundamentally treacherous to our institutions, to apply to any man any test save that of his personal worth, or to draw between two sets of men any distinction save the distinction of conduct, the distinction that marks off those who do well and wisely from those who do ill and foolishly.

1900s, Address at the Prize Day Exercises at Groton School (1904)
Context: You often hear people speaking as if life was like striving upward toward a mountain peak. That is not so. Life is as if you were traveling a ridge crest. You have the gulf of inefficiency on one side and the gulf of wickedness on the other, and it helps not to have avoided one gulf if you fall into the other. It shall profit us nothing if our people are decent and ineffective. It shall profit us nothing if they are efficient and wicked. In every walk of life, in business, politics; if the need comes, in war; in literature, science, art, in everything, what we need is a sufficient number of men who can work well and who will work with a high ideal. The work can be done in a thousand different ways. Our public life depends primarily not upon the men who occupy public positions for the moment, because they are but an infinitesimal fraction of the whole. Our public life depends upon men who take an active interest in that public life; who are bound to see public affairs honestly and competently managed; but who have the good sense to know what honesty and competency actually mean. And any such man, if he is both sane and high-minded, can be a greater help and strength to any one in public life than you can easily imagine without having had yourselves the experience. It is an immense strength to a public man to know a certain number of people to whom he can appeal for advice and for backing; whose character is so high that baseness would shrink ashamed before them; and who have such good sense that any decent public servant is entirely willing to lay before them every detail of his actions, asking only that they know the facts before they pass final judgment.

Reflections on the Revolution in France (1790)
Context: Whatever is supreme in a state, ought to have, as much as possible, its judicial authority so constituted as not only not to depend upon it, but in some sort to balance it. It ought to give a security to its justice against its power. It ought to make its judicature, as it were, something exterior to the state.

Source: Hyperion

On the Origin and Function of Music
Essays on Education (1861)