I think people deceive themselves about themselves, particularly as they get older.
Jeanette Winterson
To beguile is to deceive or lead astray, as Lucifer beguiled Eve in the Garden of Eden.
Joseph B. Wirthlin
You can't know your real mind as long as you deceive yourself.
Bodhidharma
While all deception requires secrecy, all secrecy is not meant to deceive.
Sissela Bok
The easiest person to deceive is one's self.
Edward G. Bulwer-Lytton