So far as I am acquainted with the principles and doctrines of Freemasonry, I conceive them to be founded in benevolence, and to be exercised only for the good of mankind… .”
~ George Washington, 1st U.S. President (1789-1797)

Quote:
Excerpt from a letter that he wrote to the Grand Lodge of Freemasons for the State of Maryland on November 8, 1798

Quote source:
Moore, Charles W. “The Freemasons’ Monthly Magazine” (Boston: Tuttle & Dennett, 1848) Vol. VII, p. 359

Image:
Washington as a Freemason / Strobridge & Gerlach lithographers, Pike’s Opera House, Cincinnati, O.

Image source:
http://www.mountvernon.org/digital-encyclopedia/article/freemasonry/