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.

Love and doubt have never been on speaking terms.

Love and doubt have never been on speaking terms.

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.

When unhappy, one doubts everything; when happy, one doubts
nothing.

When unhappy, one doubts everything; when happy, one doubts
nothing.

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!

Fanaticism is . . . overcompensation for doubt.

Fanaticism is . . . overcompensation for doubt.

Modest doubt is called the beacon of the wise.

Modest doubt is called the beacon of the wise.

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

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

The pragmatist knows that doubt is an art which has to be acquired with difficulty.

The pragmatist knows that doubt is an art which has to be acquired with difficulty.