“It is better to plan less and do more”

“Difficulty is the element, and resistance the true work of a man”

“Do anything rather than give yourself to reverie”

“It is a greater work to educate a child, in the true and larger sense of the word, than to rule a state”

“One never notices what has been done; one can only see what remains to be done”

“In science, we must be interested in things, not in persons”