Does this mean something different than "Truth doesn't have a moral valence"?
My primary interpretation was "attaching yourself to arguments obstructs your ability to seek the truth." If you are interested in the truth, it does not matter if you or your interlocutor is wrong or right; it matters what the truth is.
Another interpretation is "is-thinking leads to accuracy, should-thinking leads to delusion."
A third interpretation is "moralistic thinking degrades morals." I don't consider that interpretation interesting enough to agree or disagree with it.
It doesn't seem to be clear whether Seng-Ts'an is talking about moral right and wrong, or the kind of "wrong" that is involved in "proving your opponent wrong" in debates. The first interpretation is just silly according to any philosophy that cares about ethics, but the second one does make a lot of sense.
Another monthly installment of the rationality quotes thread. The usual rules apply: