Russell isn't simply preaching the tired virtue of contentment—he's describing an actual structural requirement of happiness itself, not a compromise with it. The insight cuts deeper than "wanting less is wise"; rather, he suggests that the *friction* between desire and reality is what gives satisfaction its weight and meaning. A person who obtains everything they desire has robbed themselves of the very mechanism that makes attainment feel like attainment: when a teenager finally saves enough for a guitar they've craved, the happiness comes not from possession alone but from the gap between longing and having that they've now closed. Remove that tension entirely, and you're left with mere satiation—which, as Russell understood, is the enemy of joy.