Thich Nhat Hanh
Love in Action: Writings on Nonviolent Social Change 1993
Birds’ songs express joy, beauty, and purity, and evoke in us vitality and love. So many beings in the universe love us unconditionally. The trees, the water, and the air don’t ask anything of us; they just love us. Even though we need this kind of love, we continue to destroy them. By destroying the animals, the air, and the trees, we are destroying ourselves. We must learn to practice unconditional love for all beings so that the animals, the air, the trees, and the minerals can continue to be themselves.
Tich Nat Hanh. Love in Action: Writings on Nonviolent Social Change (1993), p. 131-132.