Sylvia Earle is a majorly admirable person. Er, biologist. Er, activist. Er, aquanaut. So, she's a lot of things. All of them are pretty great. Add to that the fact that she's entertaining, whimsical, and personable, and you've got several minutes of video any little girl who is contemplating a life as a scientist should definitely watch.
At 4:40, she explains how she did incredible work — despite the rampant sexist commentary about her and her female colleagues.