Eugenics (Fromeǘs meaning “good” andgígnomai meaning “breeding”, together: “well-bred” or “good in stock") is a social philosophy which advocates the improvement of human hereditary traits through various forms of intervention.
"I believe that I am the trustee of the germ plasm that I carry; that this has been passed on to me through thousands of generations before me; and that I betray the trust if (that germ plasm being good) I so act as to jeopardize it, with its excellent possibilities, or, from motives of personal convenience, to unduly limit offspring."
"I believe that, having made our choice in marriage carefully, we, the married pair, should seek to have 4 to 6 children in order that our carefully selected germ plasm shall be reproduced in adequate degree and that this preferred stock shall not be swamped by that less carefully selected."
"I believe in such a selection of immigrants as shall not tend to adulterate our national germ plasm with socially unfit traits."
"I believe in repressing my instincts when to follow them would injure the next generation."
And often he maken it plain, Defectives will breed defectives, And the insane breed insane.
Oh why do we allow these people
To breed back to the monkey's nest,
To increase our country's burdens
When we should only breed the best?
Eugenics has, of course, more ambitious possibilities in a more distant future. It may aim not only at eliminating undesired types, but at increasing desired types. Moral standards may alter so as to make it possible for one man to be the sire of a vast progeny by many different mothers. When men of science envisage a possibility of this kind, they areprone to a type of fallacy which is common also in other directions. They imagine that a reform inaugurated by men of science would be administered as men of science would wish, by men similar in outlook to those who have advocated it. In like manner women who advocated votes for women used to imagine that the woman voter of the future would resemble the ardent feminist who won her the vote; and socialist leaders imagine that a socialist State would be administered by idealistic reformers like themselves. These are, of course, delusions; a reform, once achieved, is handed over to the average citizen. So, if eugenics reached the point where it could increase desired types, it would not be the types desired by present-day eugenists that would be increased, but rather the type desired by the average official. Prime Ministers, Bishops, and others whom the State considers desirable might become the fathers of half the next generation. Whether this would be an improvement it is not for me to say, as I have no hope of ever becoming either a Bishop or a Prime Minister.
W. B. Yeats,On the Boiler, essays, poems and a play (1939), p. 20
Nothing is less materialist than this movement. The pathetic mistake of the last generation of rationalists, one which summed up all the dissolution, all the bastardization of their pseudo-humanism, was to accuse of materialism a revolution which salvages and restores the sources and mainstays of the spirit.