Doctor?
Smart, you call them Smart people. They just strive to have good grades and that's what leads them there. Whatever you do, don't call them a nerd.
smart
the senate
People who travel by ship are called Passengers.
Sailers
because the dumb people are jealous
The Crew.
Sailors and ship's officers.
they call their ship SHE
because they are really jealous
In French, you would refer to smart people as "des personnes intelligentes".
Eggheads are really smart people; geniuses and people who work hard at school.