Michael Bierut recognizes the power of context in design. Without it, many of the world's greatest logos and identities wouldn't enjoy nearly as much impact as they currently do.
In the world of identity design, very few designs mean anything when they're brand new. A good logo, according to Paul Rand, provides the "pleasure of recognition and the promise of meaning." The promise, of course, is only fulfilled over time. "It is only by association with a product, a service, a business, or a corporation that a logo takes on any real meaning," Rand wrote in 1991. "It derives its meaning and usefulness from the quality of that which it symbolizes."