When you have got an elephant by the hind leg, and he is trying to run away, it's best to let him run.
I often quote myself. It adds spice to my conversation.
Reveal not every secret you have to a friend, for how can you tell but that friend may hereafter become an enemy. And bring not all mischief you are able to upon an enemy, for he may one day become your friend.
Good taste is the enemy of comedy.
If you aren't fired with enthusiasm, you will be fired with enthusiasm.
Nor do not saw the air too much with your hand, thus, but use all gently. For in the very torrent, tempest, and as I may say, whirlwind of passion, you must acquire and beget a temperance that may give it smoothness.
Arguments are to be avoided; they are always vulgar and often convincing.