What we do see depends mainly on what we look for. ... In the same field the farmer will notice the crop, the geologists the fossils, botanists the flowers, artists the colouring, sportmen the cover for the game. Though we may all look at the same things, it does not all follow that we should see them.
I cannot, however, but think that the world would be better and brighter if our teachers would dwell on the Duty of Happiness as well as the Happiness of Duty; for we ought to be as cheerful as we can, if only because to be happy ourselves is a most effectual contribution to the happiness of others.