" You know you’re around a safe, adult person by the following characteristics: She is not threatened by your differences. She has standards, values, and convictions she’s worked out for herself. At the same time, she doesn’t have a “right way” and a “wrong way” for everything. She functions at least on the same level of maturity as her same-age peers. She appreciates mystery and the unknown. She encourages me to develop my own values. "

― Henry Cloud , Safe People: How to Find Relationships That Are Good for You and Avoid Those That Aren't