After you make 1,000 phone calls, you start to know what people like to hear and what people don’t. You know what works. Same goes for designers—after your 500th logo, you start to get a sense of what good design looks and feels like. The same could be said for writers, musicians, marketers, and leaders.
Just like repetition is the mother of all learning, the way to produce something of quality is to first pump out the quantity. Then you can start to narrow your focus, recalibrate your intentions, and take your time on the things of most importance.