David Allen

Anything that does not belong where it is, the way it is, is an “open loop,” which will be pulling on your attention if it’s not appropriately managed.

Not stopping to really catch up (Weekly Review, GTDers!) means trying to catch up constantly & never getting there.

In order to... have nothing on your mind, you've got to know where all your actionable items are located, what they are, and that they will wait. ...[I]n a few seconds, not days.

The coolest things I do usually aren't on my lists, but because of them.

Books to read Music to download Movies to see Gift ideas Web sites to explore Weekend trips to take Ideas — Misc. (meaning you don’t know where else to put them!)

There is one thing we can do, and the happiest people are those who can do it to the limit of their ability. We can be completely present. We can be all here. We can…give all our attention to the opportunity before us. — Mark Van Doren

Much of the stress that people feel doesn't come from having too much to do. It comes from not finishing what they've started.

Every now and then go away and have a little relaxation. To remain constantly at work will diminish your judgment. Go some distance away, because work will be in perspective and a lack of harmony is more readily seen. — Leonardo da Vinci

Freedom to create a mess is proportional to your ability to know what "no mess" is and how to get there.

To ignore the unexpected (even if it were possible) would be to live without opportunity, spontaneity, and the rich moments of which “life” is made. — Stephen Covey

Get a purge for your brain. It will do better than for your stomach. — Michel Eyquem de Montaigne

It is a tricky business to know when you should set goals and objectives in order to achieve a focus, and when you would be better off dealing with the acceptance and management of your current reality so you can later step into new directions and responsibilities with greater stability and clarity. Only you will know the answer to that, and only in the moment.

Does something have your attention because you want it to, or because you're avoiding it?

When you know how, any time, to get to the place where it's all sort of funny, you've mastered GTD.

Staying in control daily, weekly, & yearly requires different things for each. Handling one doesn't handle the others.