“as long as you are alive your case is doubtful”
“Men are never convinced of your reasons, of your sincerity, of the seriousness of your sufferings, except by your death. So long as you are alive, your case is doubtful; you have a right only to their skepticism.”
“As long as you doubt your sanity, you can't be insane.”
“some choices you make with your heart some with your head but when in doubt choose head over heart.... it will keep you alive. -merry gentry”
“if you don't have doubts you're either kidding yourself or asleep. Doubts are the ants-in-the-pants of faith. They keep it alive and moving.”
“Men Wanted: For hazardous journey. Small wages, bitter cold, long months of complete darkness, constant danger, safe return doubtful. Honour and recognition in case of success.”