If you have 2 oranges + 2 chairs then you have four items but they are not all the same kind of things. Therefore it is not an absolute truth in a purely logical sense.
Back to the subject of psychosis. I often have mixed feelings about things I feel I should be 100% one way or another about anything. I find that I probably never did anything for a completely good, or moral reason and that I often had self serving or messed up thoughts about others with 100% love or hate never really being the case. My mind is complicated that way and my voices put me through the ringer on things I dd in the past by reminding me that I was never 100% right in thought even on my best deeds. Itâs kinda an insight that makes this disease so terrible. Sometimes I wish I could convince myself that I was never wrong like some people delude themselves into thinking.
If there wasnât absolute truth, why would humans strive for it? What is it that makes us even ask such a question? There must be absolute truth at some core/end somewhere. My spiritual beliefs are truth to me, but I will never claim to know absolute truth. I donât think my physical mind can perceive absolute truth, but weâll all know when we transcend the physicalâŚright? 
Maybe e = mc2. There is plenty of evidence for that. I suppose there are a lot of mathematical and scientific principles that are true, but as for human morality - I think there is a list of basic moral principles that all societies agree on - like the value of life, the evil of unnecessary suffering, the right to life, liberty, and the pursuit of happiness, and so on - but those moral principles often fall prostrate before the god of expedience in times of war and turmoil. In times of war these principles are so readily compromised that they become ironies, not principles. I suppose I believe in the progress of humanity. There is a quote by Tolstoy that âThe sole meaning of life is to serve humanity.â Nice words, but itâs short on specifics. The Nazis thought they were serving humanity when they went on their rampage. Still, I think Tolstoyâs words are something to guide many a personâs life. But as for absolute certainty, I follow the ancient Greek skeptic philosopherâs dictum - âNothing is certain, not even that.â
Death is an absolute truthâŚall things living will eventually pass awayâŚnot saying anything on after lifeâs just the simple fact the body will fade eventually is an absolute truthâŚ
If it was true that there are no universal truths, that would be a universal truth in itself. So they must exist.
For example, it is a universal truth that whenever I walk into a room, all the girls immediately swoon.
We all need water
This is the watered-down truth
I donât know much, but I like it that way, it keeps life interesting.
An absolute truth to me would be:
You live until you die.
Prove that wrong if you can.
Especially the girls who like girls 
Wow, substitute âWOMENâ in this quote instead of âMENâ and you have the story of my fantasy sex life.
i only believe huggies and kissiesâŚ
You donât know what lewd is until youâve spent the night in a crack house with four hookers and ten guys you donât know who are looking for any excuse to kick your ass, lol.
People in many ways donât seem to be interested in absolute truth.
For instance, some guy says that his suffering is the worst of all sufferings, yet if he mentions this to others they all say that this is not true because there is always someone else who has had a tougher life.
However, if there is always someone else who had it worse, then that implies that there are an infinite number of human beings, since this is required to make it so. But this is not the case. There never will be an infinite number of human beings. This kind of mistake is what happens when people are not interested in the absolute truth enough to take it seriously.
However, ignorance of absolute truth allows deception to grow wild and free.
It allows capitalism to thrive, all thanks to the absolute truth concerning the rich, never to be exposed to the lessors.