If we worked on the assumption that what is accepted as true really is true, then there would be little hope for advance.”

We cannot solve our problems with the same thinking we used when we created them.”

You never really change things by fighting the existing reality. To change something, build a new model that makes the existing model obsolete”

The difficulty lies not in new ideas but in escaping old ones”

Never doubt that a small group of thoughtful committed citizens can change the world; indeed it is the only thing that ever has.”

Fitting in and avoiding conflict is not how ideas evolve. Ideas evolve by standing out.”