Doubt, indulged and cherished, is in danger of becoming denial; but if honest, and bent on thorough investigation, it may soon lead to full establishment of the truth.
No doubt, when modesty was made a virtue, it was a very advantageous thing for the fools, for everybody is expected to speak of himself as if he were one.
In dealing with the arrogant asserter of doubt, it is not the right method to tell him to stop doubting. It is rather the right method to tell him to go on doubting, to doubt a little more, to doubt every day newer and wilder things in the universe, until at last, by some strange enlightenment, he may begin to doubt himself.
Should doubt knock at your doorway, just say to those skeptical, disturbing, rebellious thoughts: "I propose to stay with my faith, with the faith of my people."
I went over the heads of the things a man reckons desirable. No doubt invisibility made it possible to get them, but it made it impossible to enjoy them when they are got.
There is no doubt in my mind when history was written, the final page will say: 'Victory was achieved by the United States of America for the good of the world.'
There is no doubt that the actions of ISIS are designed to amplify their power and the threat that they pose. That helps them recruit. That adds in the twisted thoughts of some young person that they might want to have carry out an action that somehow they're part of a larger movement.
It is only about things that do not interest one that one can give a really unbiased opinion, which is no doubt the reason why an unbiased opinion is always absolutely valueless.
When in doubt, tell the truth. That maxim I did invent, but never expected it to be applied to me. I did say, "When you are in doubt," but when I am in doubt myself I use more sagacity.
The medical profession (is) a conspiracy to hide its own shortcomings. No doubt the same may be said of all professions. They are all conspiracies against the laity... (U)ntil there is a practicable alternative to blind trust in the doctor, the truth about the doctor is so terrible that we dare not face it.
This was charming, no doubt; but they shortly found out That the Captain they trusted so well Had only one notion for crossing the ocean, And that was to tingle his bell.