[[]]*["At 20 years of age the will reigns, at 30 the wit, at 40 the judgment."](http://www.quotes.net/quote/40378) * **[Benjamin Franklin »](http://www.quotes.net/authors/Benjamin%20Franklin)** printer whose success as an author led him to take up politics; he helped draw up the Declaration of Independence and the Constitution; he played a major role in the American Revolution and negotiated French support for the colonists; as a scientist he is remembered particularly for his research in electricity (1706-1790)