Hermann Hesse said this quote

Trees are sanctuaries. Whoever knows how to speak to them, who ever knows how to listen to them, can learn the truth. They do not preach learning and precepts, they preach, undeterred by particulars, the ancient law of life. A tree says: A kernel is hidden in me, a spark, a thought, I am life from eternal life. The attempt and the risk that the eternal mother took with me is unique, unique the form and veins of my skin, unique the smallest play of leaves in my branches and the smallest scar on my bark. I was made to form and reveal the eternal in my own smallest special detail. A tree says: My strength is trust. I know nothing about my father, I know nothing about the thousand children that every year spring out of me. I live out the secret of my seed to the very end, and care for nothing else. I trust that God is in me. I trust that my labor is holy. Out of this trust I live.