Some people mistakenly believe that like a coin, everything has two sides to it. However, this could not be farther from the truth. In the geometric sense, for example, a point has no sides and a cube has six. In the physical sense, only solids can have sides since liquids settle into the shape of their container and gasses expand or contract as is necessary to fill theirs. Also, a coin technically has three sides: the head and the tail each making one, and the banding around the edge making a third. In the figurative sense, few things have only two sides either. In a war between two countries, for instance, one side is the first army, the second side is the second army, and a third side is the farmers and villagers who are stuck in the middle and want nothing more than for the war to end and the soldiers to leave them in peace. Whether meant in the geometric, physical, or figurative sense, it is obvious that few, if any, things have exactly two sides.
(Copyright me--the fabulous Spork--as of 2011, I think. Maybe 2012. But MINE.)
(I wrote this for an assignment for Seton Home Study School; the prompt was in the English 10 First Quarter Lesson Plans, I believe.)