To effectivelycommunicate, we must realize that we are all different in the way we perceivethe world and use this understanding as a guide to our communication withothers.
Onecomes to believe whatever one repeats to oneself sufficiently often, whetherthe statement be true or false. It comes to be dominating thought in one'smind.
The reasonable man adapts himself to the world; the unreasonable one persists in trying to adapt the world to himself. Therefore, all progress depends upon the unreasonable man.