Vitruvius Quote

Then, too, the columns at the corners should be made thicker than the others by a fiftieth of their own diameter, because they are sharply outlined by the unobstructed air around them, and seem to the beholder more slender than they are.

Chapter III, Sec. 11 - De architectura (The Ten Books On Architecture) (~ 15BC) - Book III

Then, too, the columns at the corners should be made thicker than the others by a fiftieth of their own diameter, because they are sharply outlined...

Then, too, the columns at the corners should be made thicker than the others by a fiftieth of their own diameter, because they are sharply outlined...

Then, too, the columns at the corners should be made thicker than the others by a fiftieth of their own diameter, because they are sharply outlined...

Then, too, the columns at the corners should be made thicker than the others by a fiftieth of their own diameter, because they are sharply outlined...