Each time I read your story I think of a book. This time it is the 'Requiem for Homo Sapiens' by David Zindell. His main character is the ultimate model for good and he strives to abide by two principles - the law of ahimsa (Hindu or something like that) concept of never hurting another being intentionally - by action or thought; and the other thing - to eventually be able to say Yes to the Universe. And everything in it. Including, as he would realize, hurting other beings if that is really necessary.
In Western philosophy terms I think of The Golden Rule of Kant. In free form it is something like: 'Do not treat others in ways you wouldn't like to be treated yourself.'
The golden rule appears in all major religions in some form as it seems the easiest to understand.
the universe would just see possible.
Exactly :)