There are no rules. Only principles and natural laws
Diana Wynne Jones "Homeward Bounders"

I went to the woods because I wanted to live deliberately,
I wanted to live deep and suck out all the marrow of life,
To put to rout all that was not life and not when I had come to die
Discover that I had not lived

H. D. T.
(Dead Poets Society, 1989)