If the light is great in front of you, you should turn around and see what it is doing behind you.
Photography is an act of love.
Never say you're going back - SHOOT IT NOW!
You cannot accurately remember color.
The best camera is the one you have with you.
Remember that most people (those who are not photographers) don't even see the things that you missed. Many don't even look. Ergo, you are way ahead of the game.