We know accurately only when we know little, with knowledge doubt increases.

If he who employs coercion against me could mould me to his purposes by argument, no doubt he would. He pretends to punish me because his argument is strong; but he really punishes me because his argument is weak.

Your English style will no doubt put all the other gentlemen to bed. I speak figuratively, of course.

Believe those who are seeking the truth. Doubt those who find it.

Doubt is a pain too lonely to know that faith is his twin brother.

Love and doubt have never been on speaking terms.

I think people are going to have a choice to make in the fall. But I think there's no doubt there are enough seats in play that could cause Republicans to gain control. There's no doubt about that.

There's no doubt that the squad needs strengthening if we are to get back up among the top three because they are operating on another level to us at the moment.

I mean the word proof not in the sense of the lawyers, who set two half proofs equal to a whole one, but in the sense of a mathematician, where half proof = 0, and it is demanded for proof that every doubt becomes impossible.

When we bring back with us the objects most dear, and find those we left unchanged, we are tempted to doubt the lapse of time; but one link in the chain of affection broken, and every thing seems altered.

He was afflicted by the thought that where Beauty was, nothing ever ran quite straight, which no doubt, was why so many people looked on it as immoral.

I find that the best way to do things is to constantly move forward and to never doubt anything and keep moving forward, if you make a mistake say you made a mistake.

Philosophy goes no further than probabilities, and in every assertion keeps a doubt in reserve.

A Democrat has to show the toughness to govern. People don't doubt that Republicans will be tough.

When in doubt, don't.