Most minds are the slaves of external circumstances, and conform to any hand that undertakes to mould them.

There is ... scarcely any species of writing of which we can tell what is its essence, and what are its constituents; every new genius produces some innovation, which, when invented and approved, subverts the rules which the practice of foregoing authors had established.

There prevails among men of letters, an opinion, that all appearance of science is particularly hateful to Women; and that therefore whoever desires to be well received in female assemblies, must qualify himself by a total rejection of all that is serious, rational, or important; must consider argument or criticism as perpetually interdicted; and devote all his attention to trifles, and all his eloquence to compliment.

He is no wise man who will quit a certainty for an uncertainty.

No man sympathizes with the sorrows of vanity.

He who has so little knowledge of human nature as to seek happiness by changing anything but his own disposition will waste his life in fruitless efforts.

No man, however enslaved to his appetites, or hurried by his passions, can, while he preserves his intellects unimpaired, please himself with promoting the corruption of others. He whose merit has enlarged his influence would surely wish to exert it for the benefit of mankind. Yet such will be the effect of his reputation, while he suffers himself to indulge in any favourite fault, that they who have no hope to reach his excellence will catch at his failings, and his virtues will be cited to justify the copiers of his vices.