mental capacity is what we use to organize our…

mental capacity is what we use to organize our lives and focus our attention. The mental energy that best serves full engagement is realistic optimism, seeing the world as it is, but always working positively towards the desired outcome or solution.

— from Fuel (Energy)

In the book

You can have all the hours in the world and accomplish nothing if the tanks are dry. Physical energy is the raw fuel; emotional energy is the quality of it — whether it is positive and clean or sour and depleting; mental energy is what lets you organize your life and focus your attention; and spiritual energy, the deepest tank, is what supplies the very force for action across all the others — it is where your passion, your perseverance, and your commitment actually come from. To fly at your best you must be physically energized, emotionally connected, mentally focused, and spiritually aligned, all at once. — Fuel (Energy)

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