“ If, therefore, it is true of any single man’s ‘interest’ or ‘happiness’ that it ought to be his sole ultimate end, this can only mean that that man’s ‘interest’ or ‘happiness’ is the sole good, the Universal Good, and the only thing that anybody ought to aim at. What Egoism holds, therefore, is that each man’s happiness is the sole good—that a number of different things are each of them the only good thing there is—an absolute contradiction! No more complete and thorough refutation of any theory could be desired. ”
G. E. Moore
Summary
Published in 1903, G. E. Moore’s Principia Ethica redefines moral philosophy by asserting that “good” is a simple, indefinable concept, rejecting attempts to equate it with natural properties like pleasure—a stance known as the naturalistic fallacy. Moore distinguishes intrinsic value (e.g., beauty, pleasure) from extrinsic value, emphasizing that ethical judgments must not confuse the two.
His exploration of “organic unities” challenges utilitarianism, arguing that the value of a whole cannot be reduced to its components. The work profoundly influenced 20th-century ethics, shaping debates on intuitionism and aesthetic theory, and became a cornerstone for the Bloomsbury Group’s intellectual ethos.
Quotes from Principia Ethica (G. E. Moore)
“ Socrates, we see, persuades Protarchus that Hedonism is absurd. If we are really going to maintain that pleasure alone is good as an end, we must maintain that it is good, whether we are conscious of it or not. We must declare it reasonable to take as our ideal (an unattainable ideal it may be) that we should be as happy as possible, even on condition that we never know and never can know that we are happy. We must be willing to sell in exchange for the mere happiness every vestige of knowledge, both in ourselves and in others, both of happiness itself and of every other thing. ”
“ We should not get any very clear notion about things, which are yellow—we should not get very far with our science, if we were bound to hold that everything which was yellow, meant exactly the same thing as yellow. We should find we had to hold that an orange was exactly the same thing as a stool, a piece of paper, a lemon, anything you like. We could prove any number of absurdities; but should we be the nearer to the truth? Why, then, should it be different with ‘good’? Why, if good is good and indefinable, should I be held to deny that pleasure is good? ”
