Know the names of past and current artists who are most famous for playing their instruments.

Know how weather, especially humidity, can affect the movement of doors and windows.

Although spoken English doesn't obey the rules of written language, a person who doesn't know the rules thoroughly is at a great disadvantage.

Be able to cite three good qualities of every relative or acquaintance that you dislike.

Profit is what we have left after we make a donation to a worthwhile cause.

...there are days when I feel I can do anything and days when I feel I can do nothing. But fortunately for those around me, neither sort occurs very often.

Be able to recognize when you're reading or hearing material biased to your own side.