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.

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.

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

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

If I am fool, it is, at least, a doubting one; and I envy no one the certainty of his read more

If I am fool, it is, at least, a doubting one; and I envy no one the certainty of his self-approved wisdom.

I kept on digging the hole deeper and deeper looking for the
treasure chest until I finally lifted my read more

I kept on digging the hole deeper and deeper looking for the
treasure chest until I finally lifted my head, looked up and
realized that I had dug my own grave.

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.

There is nothing more dreadful than the habit of doubt. Doubt separates people. It is a poison that disintegrates friendships read more

There is nothing more dreadful than the habit of doubt. Doubt separates people. It is a poison that disintegrates friendships and breaks up pleasant relations. It is a thorn that irritates and hurts; it is a sword that kills.

He who dallies is a dastard,
He who doubts is damned.

He who dallies is a dastard,
He who doubts is damned.

Doubting charms me not less than knowledge.
[It., Non menno che saper, dubbiar m'aggrata.]

Doubting charms me not less than knowledge.
[It., Non menno che saper, dubbiar m'aggrata.]