*Abstinence* from all forms of luxury and recreation, and from food and drink beyond the lowest demands of subsistence, has, under various cultures, been regarded as a duty, as an appropriate penance for sin, as a means of spiritual growth, as a token of advanced excellence. This notion had its origin in the dualistic philosophy or theology of the East. It was believed that the sovereignty of the universe was divided between the semi-omnipotent principles of good and evil, and that the earth and the human body were created by the evil principle,—by Satan or his analogue. Hence it was inferred that the evil principle could be abjured and defied, and the good principle propitiated in no way so effectually as by renouncing the world and mortifying the body. Fasting, as a religious observance, originated in this belief. It was imported from the East. The Hebrew fasts were not established by Moses; they were evidently borrowed from Babylon, and seem to have been regarded with no favor by the prophets. The Founder of Christianity prescribed no fast, nor have we any reason to believe that his immediate disciples regarded abstinence as a duty. Christian asceticism in all its forms is, like the Jewish fasts, of Oriental origin, and had its first developments in close connection with those hybrids of Christianity and Oriental philosophy of which the dualism already mentioned forms a prominent feature. With regard to all objects of appetite, desire, and enjoyment, *temperance* is evidently fitting, and therefore a duty, unless there be specific reasons for abstinence. Temperance demands and implies moral activity. In the temperate man the appetites, desires, and tastes have their continued existence, and need vigilant and wise control, so that he has always work to do, a warfare to wage; and as conflict with the elements gives vigor to the body, so does conflict with the body add strength continually to the moral nature. The ascetic may have a hard struggle at the outset; but his aim is to extirpate his imagined enemies in the bodily affections, and when these are completely mortified, or put to death, there remains no more for him to do, and moral idleness and lethargy ensue. Simon Stylites, who spent thirty-seven years on pillars of different heights, had probably stupefied his moral faculties and sensibilities as effectually as he had crushed to death the appetites and cravings of the body. It must not be forgotten that the body no less than the soul is of God’s building, and that in his purpose all the powers and capacities of the body are good in their place and uses, and therefore to be controlled and governed, not destroyed or suppressed. The mediæval saint, feeding on the offal of the streets, was unwittingly committing sacrilege, by degrading and imbruting an appetite for which God had provided decent and wholesome nutriment.