W. Shakespeare

Love all, trust a few, do wrong to none.
-William Shakespeare

By loving all, you are opening your heart to all people, even to those who don’t love you, or who don’t have your best interests uppermost in their minds.

By trusting but a few, you are protecting yourself from those who are not worthy of your trust, who might wish to harm you or gain from your loss.

By refusing to do wrong to anyone, you help generate good-will and may even help win over some. It is also is the moral, ethical, and legally responsible way to live your life.