Don't think too much...

I cam across this, quoted in Christopher Hamilton's book Middle Age.  It's from the 'Lord Chandos letter' (1902) by Hugo von Hofmannsthal (full text here; some info here).  I wondered if it might also describe the possible effects of having an overly critical approach to ethical notions -- just imagine what it would really be like to have a sceptical view about the truth of common ethical judgements and then not be able to leave it at the door when listening to everyday chat...

Gradually, however, these attacks of anguish spread like a corroding rust. Even in familiar and humdrum conversation all the opinions which are generally expressed with ease and sleep-walking assurance became so doubtful that I had to cease altogether taking part in such talk. It filled me with an in­explicable anger, which I could conceal only with effort, to hear such things as: This affair has turned out well or ill for this or that person; Sheriff N. is a bad, Parson T. a good man; Farmer M. is to be pitied, his sons are wasters; another is to be envied because his daughters are thrifty; one family is rising in the world, another is on the downward path. All this seemed as indemonstrable, as mendacious and hollow as could be. My mind compelled me to view all things occurring in such conversations from an uncanny closeness. As once, through a magnifying glass, I had seen a piece of skin on my little finger look like a field full of holes and furrows, so I now perceived human beings and their actions. I no longer suc­ceeded in comprehending them with the simplifying eye of habit. For me everything disintegrated into parts, those parts again into parts; no longer would anything let itself be en­compassed by one idea. Single words floated round me; they congealed into eyes which stared at me and into which I was forced to stare back-whirlpools which gave me vertigo and, reeling incessantly, led into the void.