Sustainable development requires human ingenuity. People are the most important resource.

Apple Corp, the Beatles' record company, has repeatedly taken Apple Computer to court over trademark infringement. The first time was in 1978, shortly after Apple Computer was founded in 1976. The parties settled in 1981, on the contingency that Apple Computer would never enter the music industry. However, Apple Corp again took the computer giant to court in 1989 when Apple Computer introduced computers capable of music playback, and then again in 2003 after the iPod and iTunes hit the market in 2001 and 2002, respectively. The companies ultimately reached an agreement concerning the use of the word "Apple" in 2007.