"We must dare to think 'unthinkable' thoughts. We must learn to explore all the options and possibilities that confront us in a complex and rapidly changing world." - J. William Fulbright. People should always be willing to explore new things and strive to reach new goals. The little box people put themselves in saying what they can and cannot do only limits them from their true potential.
You gain strength, courage and confidence by every experience in which you really stop to look fear in the face. You are able to say to yourself, 'I have lived through this horror. I can take the next thing that comes along.' You must do the thing you think you cannot do. ~Eleanor Roosevelt