Mark

“If you do something to benefit one person, that is an absolute gain, and its relative insignificance in the wider scheme is irrelevant. Benefit two people without concomitant harm to others - or a village, tribe, city, class, nation, society or civilisation - and the benefits are scalable, arithmetic. There is no excuse beyond fatalistic self-indulgence and sheer laziness for doing nothing.”
― Iain Banks, Transition