Source: This quote is by a Nobel Peace Prize winner Roman Catholic Sister Mother Teresa of Calcutta.

Meaning: We can explain the meaning of this quote by using some other quotes
The more you judge, the less you love.
by Honore de Balzac

If we are to judge of love by its consequences, it more nearly resembles hatred than friendship.
by François de la Rochefoucauld

We can explain this quote by using different examples, as sometimes we love someone and other person don’t love us back in a way we want or deserve and if we start judging that person we also stop loving them or when we judge someone we came to know both positive and negative things about that person, and if we start forming negative opinion about someone we cannot love them.