The man who's not afraid of the sea'll soon be drownded for he'll go out on a day he shouldn't. But we be afraid of the sea so we only be drownded now and again. - 'Shogun' by James Clavell
If you are a gentleman you know quite enough. If you are not a gentleman, whatever you know is bad for you.
Some men drink at the fountain of wisdom, others only gargle.