• People who say that something cannot be done inspire brave souls to do it anyway.
• People who say that something cannot be done block themselves but not farsighted pioneers.
• People who say that something cannot be done should not interfere with people learning to do it.
• People who say that something cannot be done should not try to stop people experimenting with solutions.
• People who say that something cannot be done should not attempt to stop people from testing new approaches, ideas, methods, and solutions.
