I have always regarded Paine as one of the greatest of all Americans. Never have we had a sounder intelligence in this republic . . . It was my good fortune to encounter Thomas Paine's works in my boyhood . . . it was, indeed, a revelation to me to read that great thinker's views on political and theological subjects. Paine educated me, then, about many matters of which I had never before thought. I remember, very vividly, the flash of enlightenment that shone from Paine's writings, and I recall thinking, at that time, 'What a pity these works are not today the schoolbooks for all children!' My interest in Paine was not satisfied by my first reading of his works. I went back to them time and again, just as I have done since my boyhood days.
Thomas Edison, in the Introduction to The Life of Thomas Paine