You can fool everyone else, but you can't fool your own mind. - David Allen

Thou comest to me with a sword, and with A spear, and with a shield: but I come to thee in the name of the Lord of hosts, the God of the armies of Israel, whom thou hast defied. [...] And all this assembly shall know that the Lord saveth not with the sword and spear: for the battle is the Lord's, and he will give you into our hands.

Freedom to give full attention to what you want (vs. It being held hostage by unmanaged stuff) is the GTD promise.

The balance you have between drive & patience may be your master key to success.