Avatar: ksegasser took this pic me on the ridge route on Mt Lindsey. Photos of me looking like a bad-@$$ are rare indeed (it usually takes a lot of staging or PhotoShop work). Kim captured a rare moment so I had to indulge my pride via my avatar. I'm usually too lazy to crop and resize photos, so I don't change it often.
Quotes: I'm too lazy to change quotes, too, so I just included a few favorites. No story behind them really; I think they're self-explanatory. Each reveals a tiny bit about me.
Not included in the OP, but Screen-name: obviously a take-off on the latin phrase carpe diem - except that I replaced "diem" with my initials. The appellation was first applied to me in college. I try to live it -- with varying degrees of success.
"Humping it like a lascivious Chihuahua on great Aunt Tillie’s hosiery-covered calf, we flew down the trail bound for the station." - Steve Gladbach
"Skepticism is the first step towards truth." - Denis Diderot
"It is not what the man of science believes that distinguishes him, but how and why he believes it. His beliefs are tentative, not dogmatic; they are based on evidence, not on authority or intuition." - Bertrand Russell
"Tell people there's an invisible man in the sky who created the universe, and the vast majority will believe you. Tell them the paint is wet, and they have to touch it to be sure." - George Carlin