“The wise man regulates his conduct by the theories both of religion and science. But he regards these theories not as statements of ultimate fact but as art-forms.”
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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