Nothing proves that we are more than nothing. Emil Cioran
Belief is a wise wager. Granted that faith cannot be proved, what harm will come to you if you gamble on its truth and it proves false? If you gain, you gain all; if you lose, you lose nothing. Wager, then, without hesitation, that He exists. Blaise Pascal
You may take great comfort from the fact that suffering inwardly for the sake of truth proves abundantly that one loves it and marks one out as being of the elect. Ernest Renan
The exception proves the rule. English Proverb
Who goes not, sees not; who proves not, believes not. Italian Proverb
The exception proves the rule. Spanish Proverb