“The greatest obstacle to discovery is not ignorance - it is the illusion of knowledge.”
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Education is learning what you didn't even know you didn't know.
The traveler was active he went strenuously in search of people, of adventure, of experience. The tourist is passive he expects interesting things to happen to him. He goes 'sight-seeing.'
Some are born great, some achieve greatness, and some hire public relations officers.
The most important American addition to the World Experience was the simple surprising fact of America. We have helped prepare mankind for all its later surprises.