 In thinking about , and admiring , Andy Gleason 's career , your natural reference is the total profession of a mathematician : designing and teaching courses , advising on education at all levels , doing research , consulting for the users of mathematics , acting as a leader of the profession , cultivating math ­ e ­ mat ­ i ­ cal talent , and serving one 's institution . Andy Gleason is that rare individual who has done all of these superbly . 
