The sentence that impresses quickly may still need unpacking before it becomes useful.

A memorable line can stand in for understanding it. Something lands, you nod, you repeat it later, and at no point does it get tested against a real situation where its edges would show. Impressiveness travels faster than usefulness, which is why the sharpest formulations often stay ornamental. A phrase becomes yours once you have found out what it costs to apply.

Take one idea you have been quoting and ask what it would change about a specific decision this week. If nothing, you have a phrase rather than a tool. Try it somewhere small and see what needs adjusting.