Today's sketch

A jar of marbles, given to me by one of my professors at Harvard, who was in charge of the Program in Religious Studies and Education (PRSE), in which I participated (a program that trained teachers how to teach about religion in a public school context). She gave these jars of marbles to everyone at the end of our course of studies, saying that she had one on her desk to remind her that all her students are unique (the marbles are all different colors, although you can't tell that from my sketch).