In the absence of doubt there is no progress–questions lead to answers. — Ray Cross

Our doubts are traitors and make us lose the good we oft might win, by fearing to attempt. — Shakespeare

The test of a first-rate intelligence is the ability to hold two opposed ideas in the mind at the same time, and still retain the ability to function. — Fitzgerald

When we sow seeds of doubt, it brings us a harvest of more and more needs. Doubt is as real in its negative way as faith is in its positive way. — Don Polston, Living Without Losing, p. 64

Doubt preys on he who does not pray to God.

Find, if you can, one occasion in which Jesus inculcated doubt, or bade men dwell in uncertainty. — Spurgeon

No person can worship in the Temple of Doubt. — Joseph Parker

Keep many a question over for heaven’s eternal sunshine. — Joseph Parker

In the presence of some mysteries we must simply be silent. He who can be reverently silent in the presence of such mysteries is a great scholar in the school of God; he has the courage to say, I do not know. — Joseph Parker

Doubting refuses to ask God for the answer.

You know you are not doubting if you are asking God for the answer.

One who never asks knows either everything or nothing. — Malcom S. Forbes