If you love yourself, you love everybody else as you do yourself. As long as you love another person less than yourself, you will not succeed in loving yourself, but if you love all alike, including yourself, you will love them as one person and that person is both God and man. Thus he is the great righteous person who, loving himself, loves all others equally.

Celebrated 14th Century Mystic and Scholastic Meister Eckhart (ed. 1941)