When you extend life span, that's really something. That's hard to do.

Retarding the aging process would be therapy and enhancement because it would mean defeating diseases and because it would extend our life span.

Everyone has a really short attention span, and you have to bombard them with content, content, content.

In the early '90s, we discovered mutations that could double the normal life span of worms.

“Each of us marks the span of our life by the things we do.” ~Tom Baker

Fear is a very explosive emotion, but it has a short life span. It's the sprint. The marathon is hope.