Our concern with environment cannot be reduced to what can be used, to what can be grasped. Environment includes not only the inkstand and the blotting paper, but also the impenetrable stillness in the air, the stars, the clouds, the quiet passing of time, the wonder of my own being. I am an end as well as a means, and so is the world: an end as well as a means. My view of the world and my understanding of the self determine each other. The complete manipulation of the world results in the complete instrumentalization of the self.

Ch. 5. - Who Is Man? (1965)