Minerva was the Roman goddess of wisdom, medicine, the arts, dyeing, science and trade, but also of war. As Minerva Medica she is the patroness of physicians and medicine. She was considered to be the virgin goddess of warriors, poetry, medicine, wisdom, commerce, crafts, and the inventor of music. She is the daughter of Jupiter and Metis.
(Learn how and when to remove these template messages) Display rules are a social group's informal norms about when, where, and how one should express emotions. They can be described as culturally prescribed rules that people learn early on in their lives by interactions and socializations with other people.
VFR or Visual Flight Rules means you generally have good visibility and are in a certain range of altitudes. You basically fly using what you see (and of course navaids and charts). IFR or Instrument Flight Rules are used at certain altitudes, with certain types of aircraft and under certain kinds of visibility. Under IFR, you fly by using navaids, charts and instruments. Oftentimes you'll have zero visibility but IFR lets you fly in these assuming you're IFR certified.