“Emotional life is a domain that, as surely as math or reading, can be
handled with greater or lesser skill, and requires its unique set of competencies.
And how adept a person is at those is crucial to understanding
why one person thrives in life while another, of equal intellect, deadends:
emotional aptitude is a meta-ability, determining how well we can
use whatever other skills we have, including raw intellect.”
“I have had to wait till now before the scientific harvest was full
enough to write this book. Now science is finally able to speak with
authority to these urgent and perplexing questions of the psyche at its
most irrational, to map with some precision the human heart.”

“Anyone can become angry—that is easy. But to be angry with the right
person, to the right degree, at the right time, for the right purpose, and
in the right way—this is not easy.”