True faith loves healthy doubt.
The big questions survive all the small answers.
Every new door is opened with old doubt.
The true doubter doubts doubt.
Doubt weeps faith’s grief.
Doubt is merely faith’s time out.
Doubters ask questions believers think they have answered.
Doubt is the switch-back path to belief.
The tenacious doubter is the fanatical believer.
Our doubts are our friends; they take us by the arm and lead us from untruth.
God loves doubt; it is proof that what he created has finally begun to think up to its potential.
Those who love science love doubt.
Doubt everything to know anything.
Modern Thought Proverbs, Aphorisms and Epigrams 