A Doubting Thomas is someone who will refuse to believe something without direct, physical, personal evidence; in other words, a skeptic.
Famous quotes containing the words doubting and/or thomas:
“Still let us not be over-sanguine of a speedy final triumph. Let us be quite sober. Let us diligently apply the means, never doubting that a just God, in his own good time, will give us the rightful result.”
—Abraham Lincoln (1809–1865)
“... the outcome of the Clarence Thomas hearings and his subsequent appointment to the Supreme Court shows how misguided, narrow notions of racial solidarity that suppress dissent and critique can lead black folks to support individuals who will not protect their rights.”
—bell hooks (b. c. 1955)