What's more important is that we talk about movements; change happens through movements. The movement to end slavery, the movement to bring justice for those who have been left out of the system, movements to include women, movements around sexual preference - all these movements brought about change.
Our schools offer no conception of the scientific process of discovery. They do not encourage creative thought, in fact, they stifle it through too much rigidity in teaching. If we set out to give as little help as possible to originality in science, we could hardly devise a better plan than our education system. Youngsters ought to be told what is unknown about ourselves and our universe as well as what is known.