There is no waste of time in life like that of making explanations.

Over-explaining rarely persuades anyone not already inclined to agree. People who trust you do not need the reasoning, and people who do not will treat each additional detail as more material to argue with, which is why long justifications weaken a position more often than they strengthen it. There is a private cost too, in hours spent building a defence nobody asked for. A decision states itself more clearly than a case for it.

Next time you catch yourself drafting a paragraph of reasons, cut it to one sentence and let the silence carry the rest. Keep the full explanation for someone who genuinely asks.