Evolution in... cases has clearly been a very slow and almost (if not quite) continuous process, exactly as Darwin had predicted. We must remember, h… - J.B.S. Haldane

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Evolution in... cases has clearly been a very slow and almost (if not quite) continuous process, exactly as Darwin had predicted.
We must remember, however, that the organisms studied in this way are far from representative. They are in general the most successful members of animal associations living in very constant marine or lacustrine environments. We have not got similar data for land species... Nor do we possess them for the rarer forms. We shall see... that perhaps dominant species in a uniform environment are the least likely to undergo sudden change to a new type.

English
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About J.B.S. Haldane

John Burdon Sanderson Haldane (5 November 1892 – 1 December 1964) was a British geneticist and evolutionary biologist.

Biography information from Wikiquote

Also Known As

Native Name: John Burdon Sanderson Haldane
Alternative Names: J. B. S. Haldane
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Additional quotes by J.B.S. Haldane

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.

We do not find obvious evidence of life or mind in so-called inert matter…; but if the scientific point of view is correct, we shall ultimately find them, at least in rudimentary form, all through the universe

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.

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