110
To exert his power in doing good is man’s most glorious task.
Sophocles.
111
Those who are skilled in archery bend their bow only when they are prepared to use it; when they do not require it they allow it to remain unbent, for otherwise it would be unserviceable when the time for using it arrived. So it is with man. If he were to devote himself unceasingly to a dull round of business, without breaking the monotony by cheerful amusements, he would fall imperceptibly into idiotcy, or be struck with paralysis.
Herodotus.