|Robert Christy, comp. Proverbs, Maxims and Phrases of All Ages. 1887.|
|Doubt is the key of knowledge. Persian Sceptic.|| 1|
|He doubts nothing who knows nothing. Portuguese.|| 2|
|He that casteth all doubts shall never be resolved.|| 3|
|He who doubts nothing knows nothing. Spanish.|| 4|
|If you are in doubt of anything dont be ashamed to ask, or if you have committed an error, to be corrected. Erasmus.|| 5|
|In matters of doubt, boldness is of the greatest value. Publius Syrus.|| 6|
|Our doubts are traitors|
And make us lose the good we oft might win
By fearing to attempt. Shakespeare.
|The end of doubt is the beginning of repose. Petrarch.|| 8|
|There lives more faith in honest doubt,|
Believe me, than in half the creeds. Tennyson.
|Tis good to doubt the worst.|
We may in our belief be too secure. Webster and Kowley.
|When in doubt decide for the sake of deciding.|| 11|
|Who doubts errs not.|| 12|