Riches are valuable at all times, and to all men, because they always purchase pleasures such as men are accustomed to and desire; nor can anything restrain or regulate the love of money but a sense of honor and virtue, which, if it be not nearly equal at all times, will naturally abound most in ages of knowledge and refinement.
David HumeNothing can be more real, or concern us more, than our own sentiments of pleasure and uneasiness; and if these be favourable to virtue and unfavourable to vice, no more can be requisite to the regulation of our conduct and behavior.
David HumeBut to proceed in this reconciling project with regard to the question of liberty and necessity; the most contentious question of metaphysics, the most contentious science.
David HumeAmong well bred people a mutual deference is affected, contempt for others is disguised; authority concealed; attention given to each in his turn; and an easy stream of conversation maintained without vehemence, without interruption, without eagerness for victory, and without any airs of superiority.
David HumeJustice is a moral virtue, merely because it has that tendency to the good of mankind, and indeed is nothing but an artificial invention to that purpose. The same may be said of allegiance, of the laws of nations, of modesty, and of good manners. All these are mere human contrivances for the interest of society.
David Hume