Morality is the best of all devices for leading mankind by the nose.
~Friedrich Nietzsche, The Antichrist

Morality is a private and costly luxury.
~Henry B. Adams, The Education of Henry Adams

Without doubt half the ethical rules they din into our ears are designed to keep us at work.
~Llewelyn Powys

Do not do an immoral thing for moral reasons.
~Thomas Hardy, Jude the Obscure, 1875

The laws of conscience, which we pretend to be derived from nature, proceed from custom.
~Michel de Montaigne, translated

Our morality seems to be only a check on the ultimate domination of force, just as our politeness is a check on the impulse of every pig to put his feet in the trough.
~Oliver Wendell Holmes, Jr.

Children lack morality, but they also lack fake morality.
~Mignon McLaughlin, The Neurotic's Notebook, 1960

We have two kinds of morality side by side: one which we preach but do not practice and another which we practice but seldom preach.
~Bertrand Russell

What we call "morals" is simply blind obedience to words of command.
~Havelock Ellis

The world of empirical morality consists for the most part of nothing but ill will and envy.
~Goethe

The Seven Deadly Sins are a litany of victimless crimes, compiled to distract attention from the bloody felonies of the righteous.
~Robert Brault, www.robertbrault.com

It is with flowers, as with moral qualities: the bright-coloured are sometimes poisonous; but, I believe, never the sweet-smelling.
~Augustus William Hare and Julius Charles Hare, Guesses at Truth, by Two Brothers, 1827

Morality comes with the sad wisdom of age, when the sense of curiosity has withered.
~Graham Greene

Why should moral distinction be made between death by the spirochete and death by the streptococcus?
~Martin H. Fischer

What is morality in any given time or place? It is what the majority then and there happen to like, and immorality is what they dislike.
~Alfred North Whitehead, Dialogues, 30 August 1941