A sketch is given of a way of looking at science. Research is viewed as a complex of cognitive processes with a theoretical and experimental sides. A distinction is made between context of discovery and context of presentation. In the latter “paragons of science” come into play. From this platform the “theory of research” of Christian Huygens is examined, in its contemporary situation between Baconian empiricism and Cartesian rationalism, and in connection with Galileo's outlook on method. Huygens' attitude on legitimating (...) the results of his research production is also examined. The paper employs a method of case study, which is also discusses. (shrink)