Oh, China.
You know that you don't believe what you just wrote - even if your theory is correct.
Let me make my point before you slam me.
This whole "truth is ambiguous" thing, that it is subjective, that seeking it means you lose it, that the negation of the self or of truth is the only path; all that Dancing Wu Li Masters B.S., is, in fact, exactly that - B.S.
If you have a hacking chest infection, you, China, will go to a doctor (if you're smart). That doctor was trained in the truth of the germ theory of disease, the truth of bacterial infections and the truth of antibiotic treatment of the same. The doctor was also taught the truth of double-blind medical studies that demonstrated which treatment protocol was most effective.
Those antibiotics were made in a plant where chemical and biochemical engineers were taught the truth of organic chemistry, of the valences of different molecules, and why thalidomide made one way creates horrible birth defects, but if it is made with the tiniest possible change to the way the molecule is shaped, it is rendered totally harmless, and now has great therapeutic value.
Your drive home relies on the truth of the heat energy of the fuel to produce an expansive force to move a piston, which, after transferring the energy through a great many mechanical devices, is turned into the rotational energy that propels you and the vehicle forward. You trust the truth of friction to steer and to stop.
You trust in the truth that the apples you bought yesterday, and look the same in the refrigerator today, are the same apples you bought. You would be a paranoid fool not to believe in the continuation of existence.
You believe strongly in the truth of free will, even though that might be an illusion.
You believe that if you let go of a ball, it will fall to the ground. And that it will do so tomorrow, as well. So you believe in the truth of gravity.
You believe in the truth of nutrition, and hydration and respiration. Otherwise you'd be dead.
You believe in the truth of language, of shared, and therefore objective, meaning. That's a big one, China - objective truth. Truth independent of any one individual's perceptions.
So perhaps, China, you do believe in common-sense definitions of truth, and what you write is more like a fashion, a pretty (if somewhat silly) jacket that you wear to amuse your friends.
Pangloss