"Key aspects of the bacteriophage work illustrate central features of Seymour's ability to design scientific investigations; these features played out again and again in his scientific career, to great success. One of these is the “simple assay.” Seymour was an enthusiast of developing and using simple assays to approach any biological question of interest. Why use a complicated, time-consuming assay if a simple one would address the question equally well? Using a simpler assay would give more time and opportunity to delve in greater depth into the specific scientific question, as well as allow more time and opportunity to address additional questions of great interest."