Know how to behave at a fine restaurant, which is a telltale measure of social maturity.

While you're writing, you can't concentrate nearly as well on what the speaker is saying.

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

Be able to read blueprints, diagrams, floorplans, and other diagrams used in the construction process.

Know about the appeals process, especially in the case of the most serious crimes.

Revenge feels right only to those directly involved. Justice feels right even to outsiders.

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