“...wordless conditioning is crude and wholesale; cannot bring home the finer distinctions, cannot inculcate the more complex courses of behavior. For that there must be words, but words without reason... Not so much like drops of water, though water, it is true, can wear holes in the hardest granite; rather, drops of liquid sealing-wax, drops that adhere, encrust, incorporate themselves with what they fall on, till finally the rock is all one scarlet blob.”