The luster of diamonds is invigorated by the interposition of darker bodies; the lights of a picture are created by the shades; the highest pleasure which nature has indulged to sensitive perception is that of rest after fatigue.

The booksellers are generous liberal-minded men.

Knowledge is of two kinds. We know a subject ourselves, or we know where we can find information upon it.

The gratification of curiosity rather frees us from uneasiness than confers pleasure; we are more pained by ignorance than delighted by instruction. Curiosity is the thirst of the soul; it inflames and torments us, and makes us taste every thing with joy, however otherwise insipid, by which it may be quenched.

Milton, Madam, was a genius that could cut a Colossus from a rock; but could not carve heads upon cherry-stones.

Classical quotation is the parole of literary men all over the world.

The two offices of memory are collection and distribution.