Here’s how I define “stuff”: anything you have allowed into your psychological or physical world that doesn’t belong where it is, but for which you h… - David Allen

Defining “thinking” in its broadest sense to include any kind of focus and imagery held in the mind, in addition to the cognitive process of logic and rational judgment, means that your feelings will typically be more driven by the thoughts you hold than the other way around.

Everything you’ve told yourself you ought to do, your mind thinks you should do right now. Frankly, as soon add you have two things to do stored in your RAM, you’ve generated personal failure, because you can’t do two things at the same time. This produces an all-pervasive stress factor whose source can’t be pin-pointed.

Uncaptured, unclarified, and therefore unmanaged things that you have agreed to do own a piece of you and give you no rest.