No doubt the artist is the child of his time; but woe to him if he is also its disciple, or even its favorite.

The citizen's job is to be rude - to pierce the comfort of professional intercourse by boorish expressions of doubt.

I never appreciated 'positive heroes' in literature. They are almost always cliches, copies of copies, until the model is exhausted. I prefer perplexity, doubt, uncertainty, not just because it provides a more 'productive' literary raw material, but because that is the way we humans really are.

I doubt if you can have a truly wild party without liquor.

Who knows who will be on board? A couple of spies, for sure. At least one grand duke; a few beautiful woman, no doubt very rich and very troubled. Anything can happen and usually does on the Orient Express.

All, all is theft, all is unceasing and rigorous competition in nature; the desire to make off with the substance of others is the foremost - the most legitimate - passion nature has bred into us and, without doubt, the most agreeable one.

Authority has every reason to fear the skeptic, for authority can rarely survive in the face of doubt.

I doubt I'll ever do another book collaboration; I've been spoiled. Roger and I both happened to move to New Mexico at about the same time, when we each had a family of young kids to raise. Socializing seemed to lead naturally to working together.

I doubt God would want to touch America's tax code, since it is already located in the third rung of Hell.

Look, the president is elected to lead and to face the country's biggest challenges. The country's biggest challenge domestically speaking, no doubt about it, is a debt crisis, and I'm really hoping that he is going to give us a budget that tackles this debt crisis.

When you think you're good, you will play at that level. If you doubt yourself, you will play like crap.

I think we ought always to entertain our opinions with some measure of doubt. I shouldn't wish people dogmatically to believe any philosophy, not even mine.

The trouble with the world is that the stupid are cocksure and the intelligent are full of doubt.

Nearly all the powerful people of this age are unbelievers, the best of them in doubt and misery, the most in plodding hesitation, doing as well as they can, what practical work lies at hand.

The first test of a truly great man is his humility. By humility I don't mean doubt of his powers or hesitation in speaking his opinion, but merely an understanding of the relationship of what he can say and what he can do.