Know where to find the sunrise and sunset times and note how the sky looks at those times, at least once.
Know which officials are voted into office and which are appointed, and by whom.
Be in the habit of experimenting with your clothing so that you don't get stuck for life with a self-image developed over the course of high school.
An error becomes a mistake when we refuse to admit it.
Know how your representatives stand on major national or state issues.
You can't be wise without being intelligent, but you certainly can be intelligent without being wise.