 By definition, one divided by zero is undefined.
 It is what it isn't.
 Straight out of line.
 The 505090 rule: Any time you have a 5050 chance of getting something right, there's a 90% probability you'll get it wrong.
 The exception that proves the rule.
 The shortest distance between two points is how far apart they are.
 There are only three kinds of people; people who can count and people who can't.
 Why don't you pair'em up in threes?  Yogi Berra
