Think of the person with the to-do list. That person is convinced he never gets anything done, which gives him a slight underlying anxiety, sapping mental energy, which means he is not as efficient as the other person. The person with the priority list and holding pen knows that most days he gets pretty close to everything done. That frees up more mental energy to do more of the important things.

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Here is an important fact: The greatest value for each of us is what we really want.

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