I admire the late Doug Henning so much; he was such a unique force in the magic world. He had a gentleness and sincerity which made him so loved.
Every man alone is sincere. At the entrance of a second person, hypocrisy begins.
The value of an idea has nothing whatever to do with the sincerity of the man who expresses it.
Nothing astonishes men so much as common sense and plain dealing.
Insincerity is merely a method by which we can multiply our personalities.
Of all the evil spirits abroad at this hour in the world, insincerity is the most dangerous.
Sincerity is not a test of truth – It is possible to be sincerely wrong.
The true hypocrite is the one who ceases to perceive his deception, the one who lies with sincerity.
The secret of success is sincerity. Once you can fake that you’ve got it made.
I can promise to be sincere, but not to be impartial.