For 10 points, give this pair of concepts which title the most famous work of Martin Buber.
Friedrich Gogarten used these two words to represented a dichotomy to convey an idea of "responsibility" in which a man must choose one over the other, and used that framework to justify supporting the German state. A philosopher contrasted the combination of these two words with a "monological" counterpart, since both combinations are "primary words" but these two can be "spoken with the whole being." A link between these concepts is explained by a passage that states "I contemplate a tree," and explains that this link between them forms the (*) "subjective attitude;" this contrasts with a link between one of these words and the "it", which must involve objectification. Every relationship initiated by one of these two concepts ultimately is an encounter with the "eternal" example of the other of them, which is equivalent to God, according to a 1923 book titled for both of them. For 10 points, give this pair of concepts which title the most famous work of Martin Buber.
Friedrich Gogarten used these two words to represented a dichotomy to convey an idea of "responsibility" in which a man must choose one over the other, and used that framework to justify supporting the German state.
I [or Ich] AND Thou [or Du; accept You]