Such is the constitution of man that labour may be styled its own reward; nor will any external incitements be requisite, if it be considered how much happiness is gained, and how much misery escaped, by frequent and violent agitation of the body.
Samuel JohnsonYou may abuse a tragedy, though you cannot write one. You may scold a carpenter who has made you a bad table, though you cannot make a table. It is not your trade to make tables.
Samuel Johnson