For the correct analogy for the mind is not a vessel that needs filling, but wood that needs igniting.
PlutarchWhile Leonidas was preparing to make his stand, a Persian envoy arrived. The envoy explained to Leonidas the futility of trying to resist the advance of the Great King's army and demanded that the Greeks lay down their arms and submit to the might of Persia. Leonidas laconically told Xerxes, "Come and get them.
PlutarchThe flatterer's object is to please in everything he does; whereas the true friend always does what is right, and so often gives pleasure, often pain, not wishing the latter, but not shunning it either, if he deems it best.
PlutarchA human body in no way resembles those that were born for ravenousness; it hath no hawk's bill, no sharp talon, no roughness of teeth, no such strength of stomach or heat of digestion, as can be sufficient to convert or alter such heavy and fleshy fare . . . There is nobody that is willing to eat even a lifeless and a dead thing even as it is; so they boil it, and roast it, and alter it by fire and medicines, as it were, changing and quenching the slaughtered gore with thousands of sweet sauces, that the palate being thereby deceived may admit of such uncouth fare.
Plutarch