Socrates gave no diplomas or degrees, and would have subjected any disciple who demanded one to a disconcerting catechism on the nature of true knowledge.
G. M. TrevelyanWe are literally children of the earth, and removed from her our spirits wither or run to various forms of insanity. Unless we can refresh ourselves at least by intermittent contact with nature, we grow awry.
G. M. Trevelyan