...thinking which does not start from and continue in close relation to its foundations in the physical universe must lead to falsity.
Alvin Boyd Kuhn
He (Mohammed) seduced the people by promises of carnal pleasure to which the concupiscence of the flesh urges us. His teaching also contained precepts that were in conformity with his promises, and he gave free rein to carnal pleasure. In all this, as is not unexpected; he was obeyed by carnal men. As for proofs of the truth of his doctrine, he brought forward only such as could be grasped by the natural ability of anyone with a very modest wisdom. Indeed, the truths that he taught he mingled with many fables and with doctrines of the greatest falsity.
The greater absurdities are, the more strongly they evince the falsity of that supposition from whence they flow.
To a Brit of my generation, one of the most objectionable things about Margaret Thatcher is her falsity. She is a total construct. For one thing, she had a made-over accent.
When you're a crime reporter, you see the nub of what life's about, and you don't have much patience for the falsity of politics.
Truth and falsity is something that concerns language, it's a property of language.