“Never laugh at live dragons, Bilbo you fool!”

“Never laugh at live dragons, Bilbo you fool!' he said to himself, and it became a favourite saying of his later, and passed into a proverb. 'You aren't nearly through this adventure yet,' he added, and that was pretty true as well.”

“Never laugh at live dragons.”

“How could such a large door be kept secret from everybody outside, apart from the dragon?" [Bilbo] asked. He was only a little hobbit you must remember.”

“The truth is that the world is full of dragons, and none of us are as powerful or cool as we’d like to be. And that sucks. But when you’re confronted with that fact, you can either crawl into a hole and quit, or you can get out there, take off your shoes, and Bilbo it up.”

“The thing to recall about Dragons is that it takes a special person to deal with them at all. If you lie to them they will steal from you. If you attack them without cause they will dismember you. If you run from them they will laugh at you. It is thus best to deal calmly, openly and fairly with Dragons: Give them all they buy and no more or less, and they will do the same by you. Stand at their back and they will stand at yours. Always remember that a Dragon is first a Dragon and only then a friend, a partner, a lover. Never assume that you have discovered a Dragon's weak point until it is dead and forgotten, for joy is fleeting and a Dragon's revenge is forever.”