We bought adapters to use our three-prong plugs in the two-prong, unpolarized outlets of the old house.

A few lucky Goliards gained a more secure life by being adopted by some rich patron, just as the Archpoet, the most famous Goliard, had himself been taken up by the Archbishop of Cologne. Most Goliards roved from town to town, begging food and lodging, earning some coins by pleasing their audience with their songs.

In either arrangement, the teacher reserves personal judgment and acts more as a bridger of student ideas or as an encourager of reluctant participants (vocal participation, though, should always be the student's prerogative).

Some known Jordan curves in the basic topology are used to prove Jordan curve theorems that identify Jordan curves among simple closed ones in each of the four quotient pretopologies.