“Modern intelligence won't accept anything on authority. But it will accept anything without authority.”
“No one of real intelligence will accept anything just because some authority declares it be so. Don't accept the truth of anything you have not confirmed for yourself.”
“Those who won't accept evil never get anything good.”
“I accept the Organic Trinity of Mineral, Vegetable, and Animal with as much authority as I accept the Holy Trinity. Both are sacred.”
“Anything that stretches the mind is a help to the potential author.”
“Originality, not Intelligence, is the sign of a brilliant Author. All the Education in the world won't help someone who can't think for themselves.”