"Chasing you has been the smartest thing I’ve ever done in my life.

Booth’s describes, feels and introduces Brennan as

Recents the fact that Brennan’s mentions her multiple degrees (1×01)
Refers to her as a squint “squinting things” (1×01)
She’s amazing (1×01)
She has a lot of psychology (1×01)
Believes that Brennan’s being a good shot and martial arts skills is her way of dealing (1×01)
Doesn’t like to talk about her family (1×01)
Booth admits Brennan is a genius (1×01)
Booth says Brennan is the best (forensic anthropologist) (1×02)
Thinks Brennan has a solitary existence (1×02)
Thinks Brennan is too task oriented (1×03)
Brennan is very focused...