Success will come when you choose to feed your dreams and starve your doubts.
He who has conquered doubt and fear has conquered failure.
Modest doubt is called the beacon of the wise.
Doubt thou the stars are fire, Doubt that the sun doth move. Doubt truth to be a liar, But never doubt I love.
“If the Sun and Moon should ever doubt, they'd immediately go out.”
I no doubt deserved my enemies, but I don't believe I deserved my friends.
Truth is beautiful, without doubt; but so are lies.
Beyond a doubt truth bears the same relation to falsehood as light to darkness.
Without doubt, machinery has greatly increased the number of well-to-do idlers.
Love and doubt are not on speaking terms.
I doubt whether classical education ever has been or can be successfully carried out without corporal punishment.
Doubt everything. Find your own light.
When in doubt tell the truth.