Zealous men are ever displaying to you the strength of their belief while judicious men are showing you the grounds of it.
I think things changed as a result of a certain perception of our politics. When we went through our zealous self-righteous period it didn't exactly win us any friends.
While day by day the overzealous student stores up facts for future use he who has learned to trust nature finds need for ever fewer external directions. He will discard formula after formula until he reaches the conclusion: Let nature take its course.