said johnson in 1988, "for voluntarism to take hold as part of a company's culture, there must be a key executive who sets the example by personal involvement... i spend a good twenty to thirty percent of my time, or about two days of every seven, on what i call 'not-for-profit' activities... raising money is only one part of voluntarism; indeed it is not the most important. a more important part is the devotion of time by the people who actually service the organizations and spend a good portion of their free time working at no pay."