These studies are a spur to the young, a delight to the old: an ornament in prosperity, a consoling refuge in adversity; they are pleasure for us at home, and no burden abroad; they stay up with us at night, they accompany us when we travel, they are with us in our country visits.
When I consider the wonderful activity of the mind, so great a memory of what is past, and such a capacity of penetrating into the future: when I behold such a number of arts and sciences, and such a multitude of discoveries hence arising,--I believe and am firmly persuaded that a nature which contains so many things within itself cannot be mortal.