Nothing is more potent than my belief in me.

Potency is an odd thing to claim for something invisible. But watch what happens in a room when one person quietly assumes a job can be done — the whole estimate of the task shifts.

Belief in yourself isn't a mood you talk yourself into on a bad morning. It's built out of receipts: the small thing you said you'd do on Tuesday, and then did on Tuesday.

Each kept promise is tiny. Stacked, they become the only evidence that has ever really convinced anyone of anything about themselves.