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

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

The road to perseverance lies by doubt.

The road to perseverance lies by doubt.

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.

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

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

Men become civilized, not in proportion to their willingness to believe, but in proportion to their readiness to doubt.

Men become civilized, not in proportion to their willingness to believe, but in proportion to their readiness to doubt.

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.

In all affairs it's a healthy thing now and then to hang a question mark on the things you have read more

In all affairs it's a healthy thing now and then to hang a question mark on the things you have long taken for granted.

Make me to see't; or at the least so prove it
That the probation bear no hinge nor loop
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Make me to see't; or at the least so prove it
That the probation bear no hinge nor loop
To hang a doubt on--or woe upon thy life!

The whole problem with the world is that fools and fanatics are always so certain of themselves, but wiser people read more

The whole problem with the world is that fools and fanatics are always so certain of themselves, but wiser people so full of doubts.