Click on the phrases to see them in context. The original texts by Immanuel Kant and David Hume are available from the Gutenberg Projet.
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If this be allowed with respect to extension and number, we can make no difficulty with respect to virtue and vice, wit and folly, riches and poverty, happiness and misery, and other objects of that kind, which are always attended with an evident emotion. When we blame any action, in any situation, the whole complicated object, of action and situation, must form certain relations, wherein the essence of vice consists.