"Who never doubted, never half believed. Where doubt there truth is—'tis her shadow."

"All doubt is cowardice — all trust is brave."

"Doubt is natural to a human being, for his conceptions are infinite, his powers are only finite."

"Doubt, of whatever kind, can be ended by Action alone."

"We should never believe anything we have not dared to doubt."

"If a man, holding a belief which he was taught in childhood or persuaded of afterwards, keeps down and pushes away an…"

"Inquiry into the evidence of a doctrine is not to be made once for all, and then taken as finally settled. It is neve…"

"He would not, with a peremptory tone, Assert the nose upon his face his own."

"I slept with Faith, and found a corpse in my arms on awaking; I drank and danced all night with Doubt, and found her …"

"Another error is an impatience of doubt, and haste to assertion without due and mature suspension of judgment. For th…"