The Senator from Massachusetts has given us ample grounds to doubt the judgment and the attitude he brings to bear on vital issues of national security.

We work in the dark - we do what we can - we give what we have. Our doubt is our passion and our passion is our task. The rest is the madness of art.

I don't think there's any artist of any value who doesn't doubt what they're doing.

We all love musical architecture there's no doubt about that.

All who consult on doubtful matters should be void of hatred friendship anger and pity.

All those who offer an opinion on any doubtful point should first clear their minds of every sentiment of dislike friendship anger or pity.

In days of doubt in days of dreary musings on my country's fate you alone are my comfort and support oh great powerful righteous and free Russian language!

I was a little doubtful about the propriety of going to the Mammoth Cave without a gentleman escort but if two ladies travel alone they must have the courage of men.

He was thinking alone and seriously racking his brain to find a direction for this single force four times multiplied with which he did not doubt as with the lever for which Archimedes sought they should succeed in moving the world when some one tapped gently at his door.

Yes I will bring the understanding of a woman to the Court but I doubt that alone will affect my decisions.