Palladian

[I]f in this the moſt conſummat act of his fidelity and ripeneſſe, no years, no induſtry, no former proof of his abilities can bring him to that ſtate of maturity, as not to be ſtill miſtruſted and ſuſpected, unleſſe he carry all his conſiderat diligence, all his midnight watchings, and expence of Palladian oyl, to the haſty view of an unleaſur'd licencer, perhaps much his younger, perhaps far his inferiour in judgement, [...]

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I dwell upon this point, in the view of explaining and, as to one letter, correcting a memorable passage of Sophocles concerning the Palladian olive tree; in which he says, that it is a plant, preserved by Jove and Athena, in order to confound the enemies of Athens, and adds "that no man, young or old, (i.e. now or ever,) shall render it vain and of none effect, by pointing it out with his finger to the Persians."

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She threw forward her arms, as if with spear and buckler. Miss Barfoot was smiling at this Palladian attitude when a servant announced two ladies, Mrs. Smallbrook and Miss Haven.

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the figure for Palladian wisdom and chastity

Source: wiktionary