Faith goes back a long way. Faith leads to hope, and it overcomes fear. Faith gave our ancestors the resilience they needed to deal with the mysteries of the (pre-science) world. Faith is the dividing line between humans and most other species. We have faith that the sun will rise tomorrow, faith that Newton’s laws will continue to govern the way a ball travels, and faith that our time in med school will pay off twenty years from now because society is still going to need doctors.