Everything you've learned in school as "obvious" becomes less and less obvious as you begin to study the universe. For example, there are no solids in the universe. There's not even a suggestion of a solid. There are no absolute continuums. There are no surfaces. There are no straight lines.
The unhappy person resents it when you try to cheer him up, because that means he has to stop dwelling on himself and start paying attention to the universe. Unhappiness is the ultimate form of self-indulgence. When you’re unhappy, you get to pay a lot of attention to yourself. You get to take yourself oh so very seriously.
For monkeys to speak of truth is hubris of the highest degree. Where is it writ large that talking monkeys should be able to model the cosmos? If a sea urchin or a raccoon were to propose to you that it had a viable truth about the universe, the absurdity of that assertion would be self-evident, but in our case we make an exception.