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.

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.

Deep doubts, deep wisdom; small doubts, little wisdom.

Deep doubts, deep wisdom; small doubts, little wisdom.

The doubtful beam long nods from side to side.

The doubtful beam long nods from side to side.

The fearful unbelief is unbelief in yourself.

The fearful unbelief is unbelief in yourself.

Uncertain ways unsafest are,
And doubt a greater mischief than despair.

Uncertain ways unsafest are,
And doubt a greater mischief than despair.

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 the gods are dead--
Ay, Zeus is dead, and all the gods but Doubt,
And doubt read more

But the gods are dead--
Ay, Zeus is dead, and all the gods but Doubt,
And doubt is brother devil to Despair!

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.