A line from The Tree of Life, which comes from The Brothers Karamazov.
Love people even in their sin, for that is the semblance of Divine Love and is the highest love on earth. Love all of God’s creation, the whole and every grain of sand of it. Love every leaf, every ray of God’s light. Love the animals, love the plants, love everything. If you love everything, you will perceive the divine mystery in things. Once you perceive it, you will begin to comprehend it better every day. And you will come at last to love the whole world with an all-embracing love.
Fyodor Dostoevsky, The Brothers Karammazov (Macmillan: New York, 1922), 339.