To have doubted one's own first principles is the mark of a civilized man.

To have doubted one's own first principles is the mark of a civilized man.

But now I am cabined, cribbed, confined, bound in
To saucy doubts and fears.

But now I am cabined, cribbed, confined, bound in
To saucy doubts and fears.

Just think of the tragedy of teaching children not to doubt.

Just think of the tragedy of teaching children not to doubt.

I respect faith, but doubt is what gets you an education.

I respect faith, but doubt is what gets you an education.

The pragmatist knows that doubt is an art which has to be acquired with difficulty.

The pragmatist knows that doubt is an art which has to be acquired with difficulty.

You prove but too clearly that seeking to know
Is too frequently learning to doubt.
[Fr., Vous read more

You prove but too clearly that seeking to know
Is too frequently learning to doubt.
[Fr., Vous ne prouvez que trop que chercher a connaitre
N'est souvent qu' apprendre a douter.]

He who knows nothing, doubts nothing.

He who knows nothing, doubts nothing.

Doubt is uncomfortable, certainty is ridiculous.

Doubt is uncomfortable, certainty is ridiculous.

Doubt is the beginning not the end of wisdom

Doubt is the beginning not the end of wisdom