The Old Rules are laid down by necessity that all who live in the natural world must keep. The kind of rule that governs what you do, even if no one is watching.

The Old Rules demand that you stay in the moment, always. Nature is unpredictable, the way you came may now hide a predator. Keep a look out, out of the corner of your eyes and smell the air for changes.

~Elizabeth Marshall Thomas – The Hidden Life of Deer: Lessons from the Natural World