Thomas Aquiʹnas was so called, because he discussed the knotty points in connection with the being and nature of angels. An example is, “Utrum Anʹgelus moveatur de loco ad locum transeundo per meʹdium?” The Doctor says that it depends upon circumstances.
⁂ It is said, by way of a quiz, that one of his questions was: “How many angels can dance on the point of a pin?”