“Thoughts without content are empty, intuitions without concepts are blind.”

“Toute intuition sans concept n'aboutit pasTout concept sans intuition est vide”

“Beauty presents an indeterminate concept of Understanding, the sublime an indeterminate concept of Reason.”

“We are not rich by what we possess but by what we can do without.”

“We are enriched not by what we possess, but by what we can do without.”

“A categorical imperative would be one which represented an action as objectively necessary in itself, without reference to any other purpose.”

“Without man and his potential for moral progress, the whole of reality would be a mere wilderness, a thing in vain, and have no final purpose.”