Never let your sense of morals prevent you from doing what is right.
Foundation, by Isaac Asimov
Love is the condition in which the happiness of another person is essential to your own. Jealousy is a disease, love is a healthy condition. The immature mind often confuses one for the other, or assumes the greater the love, the greater the jealousy. In fact they are almost incompatible; both at once produce unbearable turmoil.