Certitude is not the test of certainty.

Certitude is not the test of certainty. We have been cocksure of many things that were not so.

— Oliver Wendell Holmes, Jr

We have been cocksure of many things that were not so.

— Oliver Wendell Holmes, Jr

What makes friendship indissolute and what doubles its charms is a feeling we find lacking in love: I mean certitude.

— Honore de Balzac

You have to test your hypothesis against other theories. Certainty in the face of complex situations is very dangerous.

— Richard Holbrooke

Everything's the same; I'm living with cancer and it's not going to stop me. But until you really test yourself and challenge yourself, I…

— Robin Roberts

It's kind of a test, Mary, and it's the only kind that amounts to anything. When something rotten like this happens, then you have…

— James Agee

What I know is that if you're going to play half-court, you'd better have the greatest executioners of half-court basketball. If you run, you…

— Tom Heinsohn

Physical courage is a great test.

— Oriana Fallaci

Perhaps measuring animal intelligence by comparing it to human intelligence isn't the best litmus test.

— Ingrid Newkirk

If you can't test it, don't build it. If you don't test it, rip it out.

— Boris Beizer

We like to test things... no matter how good an idea sounds, test it first.

— Henry W. Bloch

The only way to pass a test is to take the test

— Marlo Morgan

Your closest and your most dedicated fans will be your ultimate test. They will test you.

— Chuck D

I do not say that, when brought to the test, I shall be invincible.

— James Otis

Hard times may test me, they cannot destroy me,

— T. B. Joshua