The only rule is, do what you really, impulsively, wish to do. But always act on your own responsibility, sincerely. And have the courage of your own strong emotion.
I like relativity and quantum theories because I don't understand them and they make me feel as if space shifted about like a swan that can't settle, refusing to sit still and be measured; and as if the atom were an impulsive thing always changing its mind.
Along the avenue of cypresses,
All in their scarlet cloaks and surplices
Of linen, go the chanting choristers,
The priests in gold and black, the villagers. . . .
Behold then Septimus Dodge returning to Dodge-town victorious. Not crowned with laurel, it is true, but wreathed in lists of things he has seen and sucked dry. Seen and sucked dry, you know: Venus de Milo, the Rhine or the Coliseum: swallowed like so many clams, and left the shells.