Quote of the day, July 29 -- "The development of willpower - I will, I won't and I want - may define what it means to be human."

- Kelly McGonigal

Willpower is often thought of as the ability to resist temptation or push through difficult tasks. But psychologist and bestselling author Kelly McGonigal argues that it is much more than self-discipline. In her view, willpower is made up of three interconnected abilities: "I will," "I won't," and "I want." Together, these form the foundation of purposeful living and may even define what makes us uniquely human.

The quote captures a profound truth about everyday decision-making. Every day presents countless choices-whether to exercise or stay on the couch, save money or spend impulsively, fo...