If your ability to accomplish a job does not exceed the peak (hump), on the difficulty scale for one job (project), then no matter how long you wait it will not be solved.

As yardsticks to measure the effectiveness of information retrieval there exist those called 'recall ratio' and 'precision ratio'.

Americans are said to regard the amount of money a man makes as a criterion of his ability.

Man is the measure of all things.

The calorie is an exact measure of the energy in food.