> Felsenstein was influenced in his philosophy by the works of Ivan Illich, particularly Tools for Conviviality (Harper and Row, 1973). This book advocated a "convivial" approach to design which allowed users of technologies to learn about the technology by encouraging exploration, tinkering, and modification. Felsenstein had learned about electronics in much the same fashion, and summarized his conclusions in several aphorisms, to wit – "In order to survive in a public-access environment, a computer must grow a computer club around itself." Others were – "To change the rules, change the tools," and "If work is to become play, then tools must become toys."