Originál: (en) For me, the creative process, first of all, requires a good nine hours of sleep a night. Second, it must not be pushed by the need to produce practical applications.
Zdroj: [Rifkin, Glenn, William N. Lipscomb Jr., Nobel Prize-Winning Chemist, Dies at 91, nytimes.com, 2011-04-15, 2011-04-18, http://www.nytimes.com/2011/04/16/us/16lipscomb.html]