Depending on context, one may inadvertently highly overrate Truth.
I've already filed many complaints against "existence" as an onerous attribute to have to argue about, in some nevertheless important language games. I make fun of "egg zist ence" and cite the movie eXistenZ.
Today though, I'm picking on Truth.
Imagine being hungry, having only specific provisions, and wanting to eat a healthy, hearty, well-prepared meal. It's on you to perform. You're the chief chef in this picture, and you get to eat your own dog food (an open source slogan -- means you make your own bed).
What you'll need, working backwards from available ingredients, is an apropos recipe.
Now, are recipes True or are they False? They may be irrelevant, for sure, if you don't have the ingredients or anything that will do as substitutes. Ingredients may include heat, the ability to boil water, chopping devices, mixmaster machines.
In Python-verse, just about anything is True unless it's completely empty, like a recipe for making nothing. Even that sounds truthy to me. Does "true" merely mean "of substance"? Is a brick wall true by definition? Even if it's just in a cartoon?
So you have lots of recipes to keep in mind, and maybe no book to put them in. Reading hasn't been invented. Or they're in a language you haven't learned.
What if the rest of your knowledge base consists of elaborate fictional "fairy tales" (memorable fables) into which are woven the many recipes, invented and handed down through the ages. To learn the lore of your culture is to acquire an amazingly efficient store and retrieval mechanism.
Humans think in terms of stories. Stories are easier to memorize.
So harness stories to store astronomical data, for example. That's your clock, out to weeks, months, years and generations, whole epochs. The night sky teaches about geological time. The mind fills with ways to remember. Mythology is born.
Shallow scholars come along later and ridicule these fictional fairy tales for being "untrue" while completely ignoring their important mnemonic role. The Earth's axis is slowly precessing, from one constellation to a next. The complete cycle takes just under 26K years.
Beware, in your quest for comprehensivist viewpoints, of any Lust and/or Greed for Truth, as that's likely just the siren song of an attractive dogma du jour. Be willing to give space to your ignorance, and acknowledge the limits to your knowledge, without giving up on the idea of increasing it.
Think in terms of algorithms (recipes) you might need, and ways of accessing them. Moves in a martial art. Kung fu. Or moves in a sport. Muscle memories in complement with "storied" memories. Hardware and software.
What's "true" about choreography?
As if language were all about "telling the truth" and nothing else equally practical.
Go wash out your mouth with soap (figuratively will do) the next time you catch yourself saying or thinking something so nonsensical.