In reality, experimenters are cussed individuals, eager to prove the theoreticians wrong whenever possible. Richard Dalitz
Whoever has a slight knowledge of history and a fairly clear head knows perfectly well from the beginning that theoretical propaganda for revolution will necessarily express itself in action long before the theoreticians have decided that the moment to act has come. Peter Kropotkin
Washington, D.C. is full of think tanks, theoreticians and advocacy groups. Governors are the ones whose feet are on the ground. Phil Bredesen
Classical theoreticians (it is argued) attributed their own modernist ideas of self to 'primitive peoples' while asserting that the 'primitive peoples' read their idea of self into others!" Source: Internet
From NASA report SP-419: SETI – the Search for Extraterrestrial Intelligence Another possibility is that human theoreticians have underestimated how much alien life might differ from that on Earth. Source: Internet
A general history of game theory and game theoreticians. Source: Internet