The phrase "applies to himself" is correct and usable in written English.
It can be used when discussing a rule, principle, or situation that is relevant to an individual in a personal context.
Example: "The rule about punctuality applies to himself as much as it does to everyone else in the team."
Alternatives: "pertains to him" or "is relevant to him".
The book's title is one that McCorkle sardonically applies to himself.
His conduct suggests that his statement that the Republicans "swapped principle for power" applies to himself as well.
There, Depardieu plays a country priest, obsessed with evil, who offers his parishioners no consolation but, rather, a ruthless mirror of moral self-examination, which he applies to himself as well, with a scourge of physical self-punishment.
Fidelity, devotion, discretion, a sense of tacit virtue, unyielding principle, and conspicuous reserve — Ben is the apotheosis of conventional liberal morality, a firm grid of values that he applies to himself without daring to impose on others.
Harnessing technology to the power of the imagination, he argues, should be a way for its users to engage more, not to escape from engagement - a philosophy he applies to himself with rigour.
He added that he had had confirmation from an immigration lawyer that the order applies to himself and his wife as they were both born in Iraq, one of the seven countries targeted in Trump's executive order.
John McCain has renounced the "maverick" label he constantly applied to himself during his 2008 presidential run.
I privately reflect that the "particular idiosyncratic quality" he mentions could apply to himself.
At times, the words Mr. Obama used to describe Dr. King's struggles might also have applied to himself.
This is one I like of the Oxford Auden, a sensitive boy, with the interesting legend that he has applied to himself here, probably in retrospect.
