Always clean from clean to dirty. Wash glassware first, greasy dishes last. Sink and tub first, then toilet. Then floor. Top-to bottom is another general rule.
Being well-read is better (and cheaper) than an advanced degree, especially for broader education. Stay curious and read!! Fiction, non-fiction, biographies ...
You are always responsible for how you act, no matter what you’re feeling. (Or whether you’re drunk or in any way impaired.)
Hammer this point home for the next 10 years!
Sometimes fear feels like a signal to get out of there, but being uncomfortable in a new situation is totally normal. Practice sitting in that discomfort and you’ll find it gets easier.
Talk about how choices become habits. Habits can become addictions. Describe how pathways are literally dug into the brain and it's very hard to change them once those paths are made.
When choosing a partner I think it's less important that you both "believe" the same things and more important that you VALUE the same things and share the same priorities.
Try to avoid the temptation to reach a conclusion too quickly or cling to it too tightly.” (Paraphrasing James Comey from his book ’A Higher Loyalty,’ which I recommend as a fantastic lesson in leadership - and history, and public service.)
Teach them about Oliver Cromwell’s rule: “I beseech you, in the bowels of Christ, think it possible that you may be mistaken.”
Leave room for your mind to be changed by new evidence or perspective.