The Molecule of More: How a Single Chemical in Your Brain Drives Love, Sex, and Creativity―and Will Determine the Fate of the Human Race

by Daniel Z. Lieberman

make a deliberate choice about how to maximize what we believe is good—whether it’s love, money, or the ennobling of the soul.

The ennobling of the soul. To spend portions of it doing difficult things but that will make us proud in our solitary moments.