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

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.

Modest doubt is called the beacon of the wise.

Modest doubt is called the beacon of the wise.

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.

I do not like 'but yet, it does allay
The good precedence: fie upon 'but yet,'
'But read more

I do not like 'but yet, it does allay
The good precedence: fie upon 'but yet,'
'But yet' is as a jailer to bring forth
Some monstrous malefactor.

I'd rather see folks doubt what's true than accept what isn't.

I'd rather see folks doubt what's true than accept what isn't.

There lives more faith in honest doubt,
Believe me, than in half the creeds.

There lives more faith in honest doubt,
Believe me, than in half the creeds.

Who never doubted, never half believed. Where doubt is, there truth is -- it is her shadow.

Who never doubted, never half believed. Where doubt is, there truth is -- it is her shadow.