No good man ever grew rich all at once.

Money that arrives all at once has usually come from somewhere other than steady work, and the fast ways of getting it tend to involve someone else’s loss. Honest accumulation is slow because it is tied to something real being produced or saved. The narrow point is about speed rather than virtue: be curious about any return that arrives faster than the work behind it.

When something promises quick gains, ask where the money is actually coming from and who is on the other side of it. If you cannot answer, that is your answer. Keep your own building slow and dull, and it will keep.