1965 scientist-astronaut recruitment brochure quotation


I'm looking for the wording on NASA's recruitment brochure
on the 1965 (first-ever) scientist-astronaut cadre, specifically
the language of seeking 'perspicacity' and its definition as a trait
that leads one to keep one's eyes open and notice unusual
phenomena -- or something like that. Can anyone help?
And I'm seeking examples where space travelers later exhibited
exactly this trait -- spotting something weird that wasn't part of
pre-flight programs, that turned out to have scientific value --
such as Buzz Aldrin's 'light flashes' on the way to the Moon,
or Georgiy Grechko's unauthorized sleep-period sketches of
noctilucent clouds...

Thanks!

Jim O
www.jamesoberg.com