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.

Before modern times there was Walking, but not the perfection of Walking, because there was no tea.

History is the open Bible: we historians are not priests to expound it infallibly: our function is to teach people to read it and to reflect upon it for themselves.

History repeats itself and History never repeats itself are about equally true.

I have two doctors, my left leg and my right.

After a day's walk everything has twice its usual value.

We 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.