They're supposed to be the people who support you, who love you no matter what, and the reality is they're the first people who teach you to cast doubt on yourself, they're the first people who sometimes don't have your back... Laila Lalami
It was funny, though, how the human mind would cast doubt even on itself in order to explain away unusual and unconventional things it had seen vividly and unmistakably. It left you in the middle, the human mind did. Fritz Leiber
It's the job of intellectuals and writers to cast doubt on perfection. Antonio Tabucchi
Ever since I became a Muslim, I've had to deal with attempts to damage my reputation and countless insinuations seeking to cast doubt on my character and trying to connect me to causes which I do not subscribe to. Cat Stevens