The original English saying was with "better" instead of "perfect". That said, both have the same meaning: you can keep improving it forever, there will always

The original English saying was with "better" instead of "perfect". That said, both have the same meaning: you can keep improving it forever, there will always be a "better" way of doing it. What I think it means is that you have to know your objectives, as everything is a trade-off. Time you spend refactoring is time you don't spend testing or documenting it, for instance. Or it might be better to have two features at 90% "perfection" than one at 99%. Or spend that time with better marketing/landing page/etc.