Oyonale - Créations 3D et expériences graphiques
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Cliquer sur les phrases pour les voir dans leur contexte. Les textes de Immanuel Kant et David Hume sont disponibles auprès du Projet Gutenberg.
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And indeed, when we consider how aptly natural and moral evidence cement together, and form only one chain of argument betwixt them, we shall make no scruple to allow, that they are of the same nature, and derived from the same principles. The opinions of the antient philosophers, their fictions of substance and accident, and their reasonings concerning substantial forms and occult qualities, are like the spectres in the dark, and are derived from principles, which, however common, are neither universal nor unavoidable in human nature. Did impressions alone influence the will, we should every moment of our lives be subject to the greatest calamities; because, though we foresaw their approach, we should not be provided by nature with any principle of action, which might impel us to avoid them. And though young men are not ashamed of every head-ach or cold they fall into, yet no topic is so proper to mortify human pride, and make us entertain a mean opinion of our nature, than this, that we are every moment of our lives subject to such infirmities. The antients, though sensible of that maxim, THAT NATURE DOES NOTHING IN VAIN, contrived such intricate systems of the heavens, as seemed inconsistent with true philosophy, and gave place at last to something more simple and natural. It is necessary for us to leave the direct survey of this question concerning the nature of that necessary connexion, which enters into our idea of cause and effect; and endeavour to find some other questions, the examination of which will perhaps afford a hint, that may serve to clear up the present difficulty. We have already shewn, that men invented the three fundamental laws of nature, when they observed the necessity of society to their mutual subsistance, and found, that it was impossible to maintain any correspondence together, without some restraint on their natural appetites.