One of the things that will make you stand out most in business (and not only) is to close the circle on your promises.

This is true for individual contributors, teams, departments, and organizations as a whole.

If you promise something that you know you can’t deliver, or that you consistently don’t deliver over a period of time, the promise is most likely a way for you to get out of a difficult conversation, an awkward moment, a temporary discomfort.

It is not worth it.

Say only what you know you’ll do. And if you end up not doing it, give a reason and follow up.

When you meet your commitments, you build trust, gain confidence — look, you really can do it! — and grow the kind of backbone needed to say no when you truly can’t take something on.

Whitney Johnson, You Have to Stop Canceling and Rescheduling Things. Really.