As the degeneration phase of evolution was less antagonistic to the religious theory forced into biblical dogma by the Jesuit Suarez (in opposition to the evolutionary views of St. Augustine and St. Thomas Aquinas), being supported by biblical dicta (that when the fathers had eaten sour grapes the children's teeth were set on edge) and fetichistic folklore, it retained a dominance that the advanced phase lost. From the time of Hippocrates, psychiatry (the science devoted to mental disorders) continued to accumulate data of the origin and transmission of human defects. The impetus given the evolutionary explanation of these data by the seventeenth and eighteenth century biologists (Harvey, Buffon, Lamarck, Erasmus Darwin, and others) laid the foundation for the modern doctrine of degeneracy. Buffon[6] remarks that many species are being perfected or degenerated by the great changes in land and sea, by the favours or disfavours of Nature, by food, by the prolonged influences of climate, contrary or favourable, and are no longer what they formerly were. He regarded temperature, food, and climate as the three great factors in the alteration and degeneration of animals. Erasmus Darwin[7] considers that all life starts from a living filament having the capability of being excited into action by certain stimuli. This capability is that whereby plants and animals react to their environment, causing changes in them which are transmitted to their offspring. All animals undergo transformations which are in part produced by their own exertions in response to pleasures and pains, and many of these acquired forms or propensities are transmitted to their posterity. Other effects of this excitability (such as constitute hereditary diseases, like scrofula, epilepsy, insanity) have their origin in one or perhaps two generations, as in the progeny of those who drink much vinous spirits. Those hereditary propensities cease again if one or two sober generations succeed, otherwise the family becomes extinct.