“An empty skull is the vanitas symbol of modern education.”
“Erudition - dust shaken out of a book into an empty skull”
“Who is to decide which is the grimmer sight: withered hearts, or empty skulls?”
“The sun symbolizes the Divine intelligence; the empty vastness of space symbolizes the Divine All-Possibility and also the Divine immutability; a bird symbolizes the soul; a tree symbolizes the grades of being; and water symbolizes knowledge and rain revelation.”
“The 'gallows' are not only a symbol of death, but also a symbol of cruelty, terror and irreverence for life; the common denominator of primitive savagery, medieval fanaticism and modern totalitarianism.”
“The task of the modern educator is not to cut down jungles, but to irrigate deserts.”