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.

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!

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

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

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.

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

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

The road to perseverance lies by doubt.

The road to perseverance lies by doubt.

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.

Doubt is the father of invention.

Doubt is the father of invention.

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.