I've often heard it said, as the common proverb goes, that a fool can teach a wise man well.
Let every one be fully convinced in his own mind.
Death is the vast perhaps.
If you wish to be good "Pantagruelists" (which is to say, live in peace, joy, health, and always dining well), never put too much faith in people who look out through a hole.
A crier of green sauce.
Science without conscience is the soul's perdition.