Знание своих текущих обязательств способствует правильному выбору новых. - David Allen

the focus we hold in our minds affects what we perceive and how we perform.

Getting things done requires two basic components: defining (1) what “done” means (outcome) and (2) what “doing” looks like (action). And these are far from self-evident for most people about most things that have their attention.

I have found that lack of time is not the major issue for them (though they may think it is); the real problem is a lack of clarity and definition about what a project really is, and what associated next-action steps are required.