“As scarce as truth is, the supply has always been in excess of the demand.” — Josh Billings (Henry Wheeler Shaw), 19th-century American humorist

“A promise made is a debt unpaid.” — Robert W. Service (in “The Cremation of Sam McGee,” 1907)

“We must not promise what we ought not, lest we be called on to perform what we cannot.” — Abraham Lincoln, 19th-century American president

“The truth is not always the same as the majority decision.” — Pope John Paul II

“I have not observed men’s honesty to increase with their riches.” — Thomas Jefferson, 18th-century American Founding Father, early 19th-century U.S. president (letter to Jeremiah Moor, 1800)

“Honesty isn’t a policy at all; it’s a state of mind or it isn’t honesty.” — Eugene L’Hote

“Don’t tell your friends their social faults; they will cure the fault and never forgive you.” — Logan Pearsall Smith

“Frankness invites frankness.” — Ralph Waldo Emerson, 19th-century American essayist, public philosopher and poet

“An overdose of praise is like 10 lumps of sugar in coffee; only a very few people can swallow it.” — Emily Post, 20th-century American etiquette advisor and author

“The pursuit of truth will set you free — even if you never catch up with it.” — Clarence Darrow, 20th-century American lawyer

“Advertising is the art of making whole lies out of half truths.” — Edgar A. Shoaff

“All advertising, whether it lies in the field of business or of politics, will carry success by continuity and regular uniformity of application.” — Adolf Hitler, 20th-century leader of Germany’s Third Reich

“The secret of success is sincerity. Once you can fake that, you’ve got it made.” — Jean Giraudoux

“Regardless of the moral issue, dishonesty in advertising has proved very unprofitable.” — Leo Burnett, 20th-century American advertising pioneer

“When all else fails, tell the truth.” — Donald T. Regan, 20th-century American business executive, Treasury Secretary, chief of staff for President Ronald Reagan

“A lie has speed, but truth has endurance.” — Edgar J. Mohn

“If you add to the truth, you subtract from it.” — The Talmud

“What you don’t see with your eyes, don’t witness with your mouth.” — Jewish proverb

“Truth is like the sun. You can shut it out for a time, but it ain’t goin’ away.” — Elvis Presley

“The great enemy of the truth is very often not the lie — deliberate, contrived, and dishonest — but the myth — persistent, persuasive and realistic.” — John F. Kennedy, 20th- century American president (from the Yale Commencement address, 1962)

“A belief is not true because it is useful.” — Henri Amiel

“The house of delusions is cheap to build but drafty to live in.” — A.E. Housman

“When somebody lies, somebody loses.” — Stephanie Ericsson

“Flattery makes friends, truth enemies.” — Spanish proverb

“Lying can never save us from another lie.” — Vaclav Havel, 20th-century Czech poet and political activist, first president of post-Communist Republic

“We have to live today by what truth we can get today and be ready to call it falsehood tomorrow.” — William James, 19th-century American philosopher and author

“Time, whose tooth gnaws away at everything else, is powerless against truth.” — Thomas Henry Huxley, English biologist and essayist (1825-1895)