Experience
As old wood is best to burn, old horse to ride, old books to read, and old wine to drink, so are old friends always most trusty to use.
Knowledge is a city,
to the building of which
every human being brought a stone
Life
In education we are striving not to teach youth to make a living, but to make a life.
Inquiry
If we would have new knowledge, we must get a whole world of new questions.