Although I haven't done it for years, for many years, beginning in high school, I did theatrical lighting work, until I just didn't have the time to devote to hanging Lekos on the box-booms of an auditorium for amateur theater groups. Still, I've been a 'lighting guy', and I'm comfortable with much of the jargon... though with LED's and computerization, it's a different world out there now.
Tonight, I was shooting the breeze with a couple of techies who are setting up for one of our October fundraisers, and the subject of the friendly rivalry between lighting guys and sound guys came up. The technical director, who's mainly a sound guy, related a bit about a lighting designer giving him a ribbing about the importance of light vs sound:
"And on the first day, God said, 'let there be light', and there was light."
"First, he had to be heard."