“We do not know, in most cases, how far social failure and success are due to heredity, and how far to environment. But environment is the easier of the two to improve.”
Other John B. S. Haldane Quotes
It is my supposition that the Universe in not only queerer than we imagine, is queerer than we can imagine.
John B. S. Haldane 
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While I do not suggest that humanity will ever be able to dispense with its martyrs, I cannot avoid the suspicion that with a little more thought and a little less belief their number may be substantially reduced.
John B. S. Haldane
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The extreme socialists desire to run every nation as a single business concern.
John B. S. Haldane
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To the biologist the problem of socialism appears largely as a problem of size.
John B. S. Haldane
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