J. B. S. Haldane Quotes (1892-1964)

“The tendency of applied science is to magnify injustices until they become too intolerable to be borne, and the average man whom all the prophets and poets could not move turns at last and extinguishes the evil at its source.”

“The time has gone by when a Huxley could believe that while science might indeed remould traditional mythology, traditional morals were impregnable and sacrosanct to it. We must learn not to take traditional morals too seriously.”

“Christian mythology incorporated the cosmological theories current eighteen centuries ago. Dante found it a slight strain to combine this mythology with the facts known in his own day. Milton found it harder. Mr. Lewis finds it impossible.”

“It seems to me immensely unlikely that mind is a mere by-product of matter. For if my mental processes are determined wholly by the motions of atoms in my brain I have no reason to suppose that my beliefs are true. They may be sound chemically, but that does not make them sound logically. And hence I have no reason for supposing my brain to be composed of atoms.”

“I have given my reasons for thinking that we can probably explain evolution in terms of the capacity for variation of individual organisms, and the selection exercised on them by their environment. ... The most obvious alternative to this view is to hold that evolution has throughout been guided by divine power. There are two objections to this hypothesis. Most lines of descent end in extinction, and commonly the end is reached by a number of different lines evolving in parallel. This does not suggest the work of an intelligent designer, still less of an all mighty one. But the moral objection is perhaps more serious. A very large number of originally free-living Crustacea, worms, and so on, have evolved into parasites. In doing so they have lost, to a greater or less extent, their legs, eyes, and brains, and have become in many cases the cause of considerable and prolonged pain to other animals and to man. If we are going to take an ethical point of view at all (and we must do so when discussing theological questions), we are, I think, bound to place this loss of faculties coupled with increased infliction of suffering in the same class as moral breakdown in a human being, which can often be traced to genetical causes. To put the matter in a more concrete way, Blake expressed some doubt as to whether God had made the tiger. But the tiger is in many ways an admirable animal. We have now to ask whether God made the tapeworm. And it is questionable whether an affirmative answer fits in either with what we know about the process of evolution or what many of us believe about the moral perfection of God.”

“Now if we want poets to interpret physical science as Milton and Shelley did (Shelley and Keats were the last English poets who were at all up-to-date in their chemical knowledge), we must see that our possible poets are instructed, as their masters were, in science and economics.”

“J. B. S. Haldane counts fanaticism among the only four really important inventions made between 3000 B.C and 1400 A.D. It was a Judaic-Christian invention. And it is strange to think that in receiving this malady of the soul the world also received a miraculous instrument for raising societies and nations from the dead—an instrument of resurrection.”

“Although Haldane accepted the earlier and incorrect paleontological interpretation of the fossil record of Gryphaea, in his overall belief that the pace of evolution was rapid and seemingly discontinuous, rather than slow and continuous, he anticipated, at least in part and by three decades, the model of punctuated equilibria, which was proposed by... Niles Eldredge and Stephen Jay Gould.”