A miser grows rich by seeming poor. An extravagant man grows poor by seeming rich.
— William Shakespeare

Marry for Love, an Heroick Action, which makes a mighty noise in the World, partly because of its rarity, and partly in regard of its extravagancy.
Mary Astell extravagantly quote

The men the American people admire most extravagantly are the most daring liars; the men they detest most violently are those who try to tell them the truth.
— H. L. Mencken

Rarity gives a charm; so early fruits and winter roses are the most prized; and coyness sets off an extravagant mistress, while the door always open tempts no suitor.
— Marcus Valerius Martial

The finest lives in my opinion are the common model, without miracle and without extravagance.
— extravagantly quotation by Michel de Montaigne