[Warren_Piece]

The Law of Noncontradiction is totally impeneterable. Two contradictory statements about the same thing at the same time cannot both be true.

If my wife and I are standing before you, and you ask if my wife is pregnant, and I say "No" while my wife simultaneously says "yes", one of us HAS to be wrong. It could be that my wife hasn't told me yet, or i wanted to keep the pregnancy private, but only one of the answers would be "true".

There can be only "one truth", not "many truths".

This is not true, but I doubt the OP meant it like this. (And you probably knew that). But the Law of Noncontradiction is so true that in trying to disprove it, you prove it.

[atlaw]

Straying pretty far afield from the topic of the thread, the law of non-contradiction only states that a thing cannot simultaneously be both "X" and "not X" (which itself becomes a touch problematic once you delve into quantum characteristics). But of course, that's not what Psalm 73 said. What Psalm 73 said was:

There can be only "one truth", not "many truths".

Perhaps you subscribe to the libertarian idea that each person creates his own truth . . . . If there is no one source for truth, then how do you know that the things you believe are valid - 'cause they work for you?

The statement, as qualified, certainly does not appear to be a recitation of the law of non-contradiction. And as you noted Warren_Piece, it is demonstrably false as written (and, I would venture to say, as qualified).

And in answer to the question you pose above, Psalm 73, I would say -- yes, validity is borne out by experience.