My audience has lots of people between 20 and 35, but there are always a few 60-year-olds, and it makes me happier than if everyone was 22.
A lot of people in my class were one to two years older than me.
You can open up a centenarian's brain, and you'll see some areas that look like that of a 50-year-old or of a 110-year-old. You can have variation in the basic process of aging, called senescence, in different parts of the same body.
Common sense varies among the young, as among the old.
The great generalities of the constitution have a content and a significance that vary from age to age.
I constantly work with material that could be two years old, five years old, ten years old, as well as new things.
Age-class running, as you know, is completely unreliable. It's based on this artificial thing, which is that people who are the same age have the same level of physical maturity. Which just isn't true.
We know in the field of aging that some people tend to senesce, or grow older, more rapidly than others, and some more slowly.
