Debate

A debate is never anything but a conflict of opinions; and opinions are nothing but very fragmentary aspects of the truth. Even if you were able to put together and synthesise all opinions on a given subject, you still would not achieve anything but a very imperfect expression of the truth.

If you prevail in a debate, it means that your opinion has prevailed over the opinion of another, not necessarily because yours was truer than his, but because you were better at wielding the arguments or because you were a more stubborn debater. And you come out of the discussion convinced that you are right in what you assert; and so you lose a chance to see a view of the question other than your own and to add an aspect of the truth to the one or the ones you already possess. You remain imprisoned in your own thought and refuse to widen it.

Ref : On Thoughts and Aphorisms