If you're trying to be more creative, one of the most important things you can do is increase the volume and diversity of the information to which you are exposed.
“The criteria for serving one's country should be competence, courage and willingness to serve. When we deny people the chance to serve because of their sexual orientation, we deprive them of their rights of citizenship, and we deprive our armed forces the service of willing and capable Americans.”
“Like all science, psychology is knowledge; and like science again, it is knowledge of a definite thing, the mind.”