There’s no place for originality in architecture! Nobody can improve on the buildings of the past!”  Those are the second and ...
Columns are often used to hold up heavy loads, such as the roofs of buildings. The heavy load pushes on the column, putting it in compression. So, a good column should be very strong in compression.
Editor's note: This is part 2 of the series Lancaster in Style, about the various styles of architecture found throughout Lancaster County. Lancaster in Style, part 2: German style, 1710-1770 ...