https://redsails.org/sartre-reason-falsely/

^ essentially this, but applied to every aspect of their sad lives.

The rational man groans as he gropes for the truth; he knows that his reasoning is no more than tentative, that other considerations may supervene to cast doubt on it. He never sees very clearly where he is going; he is “open”; he may even appear to be hesitant. But there are people who are attracted by the durability of a stone. They wish to be massive and impenetrable; they wish not to change. Where, indeed, would change take them? We have here a basic fear of oneself and of truth. What frightens them is not the content of truth, of which they have no conception, but the form itself of truth, that thing of indefinite approximation. It is as if their own existence were in continual suspension.

But they wish to exist all at once and right away. They do not want any acquired opinions; they want them to be innate. Since they are afraid of reasoning, they wish to lead the kind of life wherein reasoning and research play only a subordinate role, wherein one seeks only what he has already found, wherein one becomes only what he already was. This is nothing but passion. Only a strong emotional bias can give a lightning‐like certainty; it alone can hold reason in leash; it alone can remain impervious to experience and last for a whole lifetime.