Doubt the conventional wisdom unless you can verify it with reason and experiment.

Trust but verify.

Aristotle maintained that women have fewer teeth than men although he was twice married it never occurred to him to verify this statement by examining his wives' mouths.

In the latter case life rests upon a thousand presuppositions which the individual can never trace back to their origins and verify but which he must accept upon faith and belief.

In properly organized groups no faith is required what is required is simply a little trust and even that only for a little while for the sooner a man begins to verify all he hears the better it is for him.

I gambled and I lost. I failed in securing my options for this choice for myself but I succeeded in verifying the Dark Age is still with us.