How do we keep good ideas from becoming trite?

Individualism is a big part of American culture, so much so that I think certain aspects of it have become trite. I know that as a kid I would always roll my eyes at such cliches as "be yourself" and "follow your dreams." Even though on reflection they were actually good advice, they always sounded phony to me and I think most people felt the same and continue to feel that way for all their lives. I've been inspired a lot by some of Ayn Rand's writings, but if her ideas were to become more commonplace, I wonder whether the principles of Objectivism would just start to sound like more uninspiring platitudes. How can we prevent this? How can we rescue good ideas from being dismissed as clichés?