“The transformation was not sudden or once-for-all, but it became increasingly possible to turn away from a preoccupation with angels and demons and immaterial causes and to focus instead on things in this world; to understand that humans are made of the same stuff as everything else and are part of the natural order; to conduct experiments without fearing that one is infringing on God’s jealously guarded secrets; to question authorities and challenge received doctrines;.”
