GM
I’m not sure I agree wholeheartedly with today’s quote.
That may work in chess and it’s fine to look for the better one, yet if you wait too long you may miss out on any good move at all.
I decided to check AI’s take on this and here’s its expanded description:

The famous advice "When you see a good move, look for a better one" is attributed to the second World Chess Champion, Emanuel Lasker. It warns players against impulse and settling for the first acceptable option they spot on the board.
Why This Advice Matters
Avoids tunnel vision: Finding one decent move stops your search, making you miss hidden tactics.
Combats impatience: Pausing forces discipline, especially in critical game moments.
Deepens calculation: Comparing multiple candidate choices improves overall board vision.
Modern Context and Chess
While valuable, applying this maxim requires good time management. Spending too long hunting for perfection in fast modern games can lead to time trouble, meaning the "best" move must be balanced against the clock.