Perhaps humans’ greatest adaptation is our ability to adopt the values best suited to our environment.

The lion, the horse, the dog. They are all governed by their passions. What they love they crave, and what they crave they pursue.

The swine, man’s kindred, may choose if he prefers meat or veg, but only we may choose more than fish or beef. Loyal or disloyal, honest or false, loving or cruel, we are free to accommodate our environments.