Objectivist Tidbit: Character

Ayn Rand on the crucial importance of a person's character to his life, from “The Goal of My Writing,” in The Romantic Manifesto:

Just as man’s physical survival depends on his own effort, so does his psychological survival. Man faces two corollary, interdependent fields of action in which a constant exercise of choice and a constant creative process are demanded of him: the world around him and his own soul (by “soul,” I mean his consciousness). Just as he has to produce the material values he needs to sustain his life, so he has to acquire the values of character that enable him to sustain it and that make his life worth living. He is born without the knowledge of either. He has to discover both—and translate them into reality—and survive by shaping the world and himself in the image of his values.

What character traits have you deliberately cultivated in the course of switching to a paleo diet -- and why?