Man is the only one that knows nothing, that can learn nothing without being taught. He can neither speak nor walk nor eat, and in short he can do nothing at the prompting of nature only, but weep.
Accustom yourself to master and overcome things of difficulty; for if you observe, the left hand for want of practice is insignificant, and not adapted to general business; yet it holds the bridle better than the right, from constant use.
Indeed, what is there that does not appear marvelous when it comes to our knowledge for the first time? How many things, too, are looked up on as quite impossible until they have been actually effected?
