The brain is the highest of the organs in position, and it is protected by the vault of the head; it has no flesh or blood or refuse. It is the citadel of sense-perception.
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?
It is a maxim universally agreed upon in agriculture, that nothing must be done too late; and again, that everything must be done at its proper season; while there is a third precept which reminds us that opportunities lost can never be regained.
