my philosophy for running. Also add to this quote - if you run til you pass out it won't hurt at all, just find someplace soft to land before you do. Finally, if you run til you puke then that's even more calories you 'burned' in your workout!
Early morning runs are my favorite kind of runs. It is in those runs that I pound out any of yesterday's baggage that still may linger while I enjoy the sounds of nature waking up to greet me. Yes, early morning runs are my favorite kind of runs.