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Make specific appointments with yourself to work on goals, and treat an appointment with yourself as you'd treat an appointment with anybody else.

Stephen R. Covey (2015). “The Stephen R. Covey Interactive Reader - 4 Books in 1: The 7 Habits of Highly Effective People, First Things First, and the Best of the Most Renowned Leadership Teacher of our Time”, p.568, Mango Media Inc.
Make specific appointments with yourself to work on goals, and treat an appointment with yourself as you'd treat an appointment with anybody else.