Here is the infallible test. Imagine yourself in a situation where you are alone, wholly alone on earth, and you are offered one of the two, books or men. I often hear men prizing their solitude but that is only because there are still men somewhere on earth even though in the far distance. I knew nothing of books when I came forth from the womb of my mother, and I shall die without books, with another human hand in my own. I do, indeed, close my door at times and surrender myself to a book, but only because I can open the door again and see a human being looking at me.
Martin BuberWhen I confront a human being as my Thou and speak the basic word I-Thou to him, then he is no thing among things nor does he consist of things. He is no longer He or She, a dot in the world grid of space and time, nor a condition to be experienced and described, a loose bundle of named qualities. Neighborless and seamless, he is Thou and fills the firmament. Not as if there were nothing but he; but everything else lives in his light.
Martin BuberI think no human being can give more than this. Making life possible for the other, if only for a moment.
Martin BuberEvery man's foremost task is the actualization of his unique, unprecedented and never-recurring potentialities, and not the repetition of something that another, and be it even the greatest, has already achieved.
Martin Buber