Pericles (2.2-2.3)

For it does not of necessity follow that, if the work delights you with its grace, the one who wrought it is worthy of your esteem. Wherefore the spectator is not advantaged by those things at sight of which no ardor for imitation arises in the breast, nor any uplift of the soul arousing zealous impulses to do the like. But virtuous action straightway so disposes a man that he no sooner admires the works of virtue than he strives to emulate those who wrought them.

The good things of Fortune we love to possess and enjoy; those of Virtue we love to perform. The former we are willing should be ours at the hands of others; the latter we wish that others rather should have at our hands. The Good creates a stir of activity towards itself, and implants at once in the spectator an active impulse; it does not form his character by ideal representation alone, but through the investigation of its work it furnishes him with a dominant purpose.