Doubt Quotes

Skepticism is the first step on the road to philosophy.

But scientists, who ought to know – Assure us that it must be so. Oh, let us never, never doubt – What nobody is sure about.

For right is right, since God is God, And right the day must win; To doubt would be disloyalty, To falter would be sin.

When in doubt, mumble; when in trouble, delegate; when in charge, ponder.

Doubt whom you will, but never yourself.

All we have gained then by our unbelief Is a life of doubt diversified by faith, For one of faith diversified by doubt: We called the chess-board white, we call it black.

I’ve stood upon Achilles’ tomb, And heard Troy doubted: time will doubt of Rome.

Action will remove the doubt that theory cannot solve.