"Focus on the students, since graduating great students means you'll produce great research, while focusing on the research may or may not produce great students." by David Notkin (1955-2013) (my academic father) who passed it along from Nico Habermann (1932-1993) (my academic grandfather). Such advice can be generalized to other places, e.g., focus on (care about) people. Such advice is related to an old Chinese Proverb “授人以鱼,三餐之需;授人以渔,终生之用” whose English version is "If you give a man a fish you feed him for a day. If you teach a man to fish you feed him for a lifetime."