If human beings could be propagated by cutting, like apple trees, aristocracy would be biologically sound.
John B. S. HaldaneThe 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.
John B. S. HaldaneSo many new ideas are at first strange and horrible though ultimately valuable that a very heavy responsibility rests upon those who would prevent their dissemination.
John B. S. HaldaneThe conservative has but little to fear from the man whose reason is the servant of his passions, but let him beware of him in whom reason has become the greatest and most terrible of the passions. These are the wreckers of outworn empires and civilisations, doubters, disintegrators, deicides.
John B. S. Haldane