He had experienced the fact that sometimes in the middle of a discussion one understands what it is that one's opponent likes, and suddenly likes it oneself, and immediately agrees with him, when all proofs become superfluous and unnecessary.
Levin, a veces, cuando discutía, si adivinaba de repente lo que agradaba a su adversario, comenzaba también él a verlo con agrado, se unía a su opinión y todas las demostraciones resultaban innecesarias.