Inventor Quotes and aphorisms about without Nikola Tesla Alexander Graham Bell ,, It is hardly an exaggeration to say that oral teachers and sign teachers found it difficult to sit ... Alexander Graham Bell ,, It is not, of course, complete yet - but some sentences were understood this afternoon... I feel th... Alexander Graham Bell ,, I do not recognize the right of the public to break in the front door of a man's private life in or... Lonnie Johnson Dean Kamen Dean Kamen Wilbur Wright William Kamkwamba David Sarnoff