This can be interpreted in so many ways because there are different meanings to it. Success is the opposite of failure but isn't success built on the basis of failure? Success and failure are both polar opposites of one another yet one is needed for the other to happen. If everyone succeeded, then it wouldn't be called success because it's an attribute of everyone. If everyone failed, then it wouldn't be called failure as that too is an attribute of everyone. Failure is not failure if everyone fails because it becomes a normality of day-to-day life to the point that no one even knows what it means. Likewise, success is not success if everyone succeeds because it then becomes a normality to the point again that no one knows the definition of success. This quote elaborates mainly on this: Failure being the foundation of success - Failure being the opposite of success - Both success and failure being required to have any meaning to them.