Good is the Enemy of the Great

The wisdom of Voltaire, Confucius and Bruce Lee
[the] perfect is the enemy of [the] good enough

Perfect is the Enemy of the Good wikipedia

When “Good Enough” Is Better Than Perfect
Gretchen Rubin (Slate)

Le mieux est l’ennemi du bien
The best is the enemy of the good — Voltaire
Julia Rocchi (Italian Mother Syndrome)

Better a diamond with a flaw than a pebble without — Confucius
Peter Vajda (Management Issues)

种瓜得瓜,种豆得豆 (zhòng dòu dé dòu)
It is better to die a broken piece of jade than to live a life of clay — Bruce Lee: Game of Death (1978)