"One ought, every day at least, to hear a little song, read a good poem, see a fine picture, and if it were possible, to speak a few reasonable words."
"Mathematicians are like Frenchmen: whatever you say to them they translate into their own language, and forthwith it is something entirely different."
"Beware of dissipating your powers; strive constantly to concentrate them. Genius thinks it can do whatever it sees others doing, but is sure to repent of every ill-judged outlay."
"If you treat an individual as he is, he will remain as he is. But if you treat him as if he were what he ought to be and could be, he will become what he ought and could be."
"A man should hear a little music, read a little poetry, and see a fine picture every day of his life, in order that worldly cares may not obliterate the sense of the beautiful which God has implanted in the human soul."
"That is the true season of love, when we believe that we alone can love, that no one could ever have loved so before us, and that no one will love in the same way after us."
"If any man wish to write in a clear style, let him be first clear in his thoughts; and if any would write in a noble style, let him first possess a noble soul."