"The greatest evil that can befall man is that he should come to think ill of himself."

"Every day we should hear at least one little song, read one good poem, see one exquisite picture, and, if possible, speak a few sensible words."

"The mind is not a vessel to be filled, but a fire to be kindled."

"Only those who know how to suffer can understand everything."

"One never goes so far as when one does not know where one is going."