+G.K. Chesterton's reply to a pamphlet on eugenics by Congressman Frank O. Smith of Maryland:
"Mr. Smith is an American, and Eugenics is chiefly a denial of the Declaration of Independence.
It urges that so far from all men being born equal, numbers of them ought not to be born at all.
And so far as them being entitled to life, liberty, and the pursuit of happiness, they are to be forbidden a form of liberty and happiness that the maddest inquisitor never dreamed of meddling with before.
You can find the full essay in "The Collected Works of G.K. Chesterton, vol. 30."