“Reason will take us so far on firm ground. But then there must be the leap in the same direction, if the truth of those facts in religion which are only reached by faith are to be enjoyed. . . It is taking the road of evidence as far as it will go and then, with the energy provided by meditating on the character of God as Christ revealed him, making a leap of faith, only to land finally in a conviction as strong as proof can supply.”