I notice some grammatical and aesthetic errors in the content itself.
Otherwise I would love to help you write a summary since I am a big fan of philosophy.
“Merely some short time ago Mark almost (nearly) became renowned all over the country. But (However,) he seems not to be oppressed at all by the unexplainable (inexplicable,) abrupt failure he met with. Not to be oppressed by its consequence either – (;) his present poor and undistinguished way of life. As (,as) though it suits him fine. Actually (,) his life had always been quiet before his success, and it never seemed (seems as though) he wishes different for himself.
Thus, the reserved boy’s childhood was passing unnaturally calmly. Even in his early school years Mark rarely spent time after school on the streets in (with the) noisy gangs of his peers, but mostly sat in his room, playing in solitude. A child psychologist would have probably said that he was imitating his father, who, working as a translator of books, did not have to leave the house too often.”