Indeed, we go so far as to study the properties of figures that we cannot construct, as when we ask for the size of the angle of a regular heptagon.
"The Teaching of Geometry"
David Eugene Smith
A fellow was dory-mate with me once-a Frenchman from Bordeaux-told me and said never to tell, and I gave my oath-down in St. Peer harbor in Miquelon it was-and afterwards he was lost on the heptagon-and of course, never being released from the oath, I can't tell.
"The Seiners"
James B. (James Brendan) Connolly