We human beings are of greater value than all other creatures. We must reject the flesh. As long as we enjoy the things of the flesh, we can never fully grasp the things of the spirit . . . Whoever shows devout faith in the divine promise . . . The soul is in opposition to the wishes of the flesh.
Sexual desire is the work of the devil.
The voracity of the devil's gullet inspires our loins with pleasure in sinning and fleshly desires in that very place where what we eats descends and is ejected, and where the desire of the flesh is rampant. Yet God's protection has defended our loins and endowed them with chastity by raising up their actions to what is good. Whatever frisks about wildly with indecent actions will afterward be submerged in sorrow. It fuses religion and science, and concern for humans with concern for nature. It provides the the most solid basis for environmental ethics.