The phrase "discovering for himself" is grammatically correct and can be used in written English.
It is typically used to describe someone independently finding or learning something on their own, without the help or guidance of others. Example: John was always curious and loved discovering for himself. He spent hours in the library reading books and exploring new topics, constantly expanding his knowledge.
He was discovering for himself the power and beauty of Egyptian, Etruscan, and, later, pre-Columbian and African sculpture.
It will be hard, though, to forget a lot of the detail Mr. Hamelin was discovering for himself and his listeners: the veiled beauty of the main theme in the first movement, almost as if overheard from another room, or the extreme delicacy of the slow movement, with the left hand crossing over to dab in faint stars of sound, or the liveliness and humor of the scherzo.
PASSAGE TO ARARAT about writer's trip to Armenia, to discover for himself what it is to be Armenian.
I created environments in which a child could discover for himself what he was interested in doing. . . .
PASSAGE TO ARARAT about writer's voyage to discover for himself what it is to be Armenian.
It was a taste he discovered for himself, shortly before leaving with another scholarship to read classics at Christ Church College, Oxford.
Sarkis, an Armenian teacher, was upset when… PASSAGE TO ARARAT about writer's voyage to discover for himself what it is to be Armenian.
Born in 1769 into a Prussian aristocratic family, he discarded a life of privilege to discover for himself how the world worked.
You hear your stomach rumble, or the hum of blood circulating in your ears, even in an anechoic chamber, as Cage discovered for himself.
The New Yorker, February 10 , 1975P. 40 PASSAGE TO ARARAT about writer's trip to Armenia, to discover for himself what it is to be Armenian.
The New Yorker, February 3 , 1975P. 32 PASSAGE TO ARARAT about writer's voyage to discover for himself what it is to be Armenian.
