From New Seeds of Contemplation.
Love your enemies.
Do not think that you can show your love for Christ by hating those who seem to be His enemies on earth. Suppose they really do hate Him: nevertheless He loves them, and you cannot be united with Him unless you love them too. (176)
Do not be too quick to assume your enemy is a savage just because he is your enemy. Perhaps he is your enemy because he thinks you are a savage. (177)
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. (177)