Do not be too quick to assume that your enemy is an enemy of God just because he is your enemy. Perhaps he is your enemy precisely because he can find nothing in you that gives glory to God. Perhaps he fears you because he can find nothing in you of God’s love and God’s kindness and God’s patience and mercy and understanding of the weaknesses of men.
Do not be too quick to condemn the man who no longer believes in God, for it is perhaps your own coldness and avarice, your mediocrity and materialism, your sensuality and selfishness that have killed his faith.
– Thomas Merton, New Seeds of Contemplation