Genius is one of the many forms of insanity. - Cesare Lombroso

Good sense travels on the well-worn paths; genius, never. And that is why the crowd, not altogether without reason, is so ready to treat great men as lunatics.

Unfortunately, goodness and honor are rather the exception than the rule among exceptional men, not to speak of geniuses.

Klopstock was questioned regarding the meaningof a passage in his poem. He replied, "God and I both knew what it meant once; now God alone knows."