So you seek refuge in the thought that he must be Deluding himself and them, perhaps unconsciously.
"The Book of Life: Vol. I Mind and Body; Vol. II Love and Society"
Upton Sinclair
It is idle to attempt Deluding it.
"The White Gauntlet"
Mayne Reid
You may think that you apprehend and accept the scope of this pregnant word, because you do not reject it as a proposition; but partial knowledge is often Deluding, and not doubting is far from efficient conviction, which a comprehensive and penetrating understanding of a principle gives.
"Education in The Home, The Kindergarten, and The Primary School"
Elizabeth P. Peabody