(Interestingly, he was not all that impressed with the opinions of Francis Bacon, one of his patients.) Diagrams of Harvey pressing fingers at precise points on veins on the arm to illustrate his ideas are readily available.
The Egyptian physician Ibn Al-Nafis had made significant headway 300 years earlier explaining pulmonary circulation.
Some of Harvey’s hypotheses later proved false, and his theory was incomplete in itself.
To what extent Christian saving faith was realized in Harvey’s personal life is hard to say for sure, but Mc Mullen claims Harvey was influenced by the Calvinist environment at Cambridge, and had George Estey, a clergymen and lecturer in Hebrew, as a tutor.
A couple of anecdotes reveal his faith was more than cultural or intellectual assent to prevailing opinion.
Once he rhymed, “There is a lust in man no charm can tame: Of loudly publishing his neighbor’s shame: On eagles wings immortal scandals fly, while virtuous actions are born and die.” Though his work on blood circulation is legendary, we should pause to observe that most scientific discoveries are elaborations of previous work.