Thus Spake Zarathustra by Friedrich Nietzsche

Thus spake Zarathustra. Zarathustra’s eye had perceived that a certain youth avoided him. And as he walked alone one evening over the hills surrounding the town called “The Pied Cow,” behold, there found he the youth sitting leaning against a tree, and gazing with wearied look into the valley. Zarathustra thereupon laid hold of the tree beside which the youth sat, and spake thus: “If I wished to shake this tree with my hands, I should not be able to do so.

But the wind, which we see not, troubleth and bendeth it as it listeth. We are sorest bent and troubled by invisible hands.”