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.

Modest doubt is called the beacon of the wise.

Modest doubt is called the beacon of the wise.

Fain would I but dare not; I dare, and yet I may not;
I may, although I care not read more

Fain would I but dare not; I dare, and yet I may not;
I may, although I care not for pleasure when I play not.

The doubtful beam long nods from side to side.

The doubtful beam long nods from side to side.

Truth is beautiful, without doubt; but so are lies.

Truth is beautiful, without doubt; but so are lies.

Doubt is a pain too lonely to know that faith is his twin brother.

Doubt is a pain too lonely to know that faith is his twin brother.

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

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

Doubt yourself and you doubt everything you see. Judge yourself
and you see judges everywhere. But if you listen read more

Doubt yourself and you doubt everything you see. Judge yourself
and you see judges everywhere. But if you listen to the sound of
your own voice, you can rise above doubt and judgment. And you
can see forever.