Life is brief, no matter if you live to 40 or 100. Even when you're bored... something is going on, so make each moment count. Easier said than done, I know.

A screenplay is a crystallization of life. You only have 120 pages (usually less) to make an impact.

Make each page, character, dialogue, description count.

To quote another maxim, minimum words, maximum impact.

It's a little late now, but who's your "Screenwriting as Scenewriting" class through? UCLA? Any more openings? Going to teach it again?

I took a course called "Nuts & Bolts" with Dakota Powell through UCLA a couple of years back. All writing scenes. Best writing course I've ever had. Really helped me to focus on the micro level.