It is better to live rich than to die rich.

No man can enjoy happiness without thinking that he enjoys it.

Nothing has tended more to retard the advancement of science than the disposition in vulgar minds to vilify what they cannot comprehend.

You need a good editor because every writer thinks he can write a War and Peace, but by the time he gets it on paper, it's not War and Peace anymore; it's comic-book stuff. Your manuscript is both good and original. But the part that is good is not original, and the part that is original is not good.

Pleasure is very seldom found where it is sought. Our brightest blazes of gladness are commonly kindled by unexpected sparks. The flowers which scatter their odours from time to time in the paths of life, grow up without culture from seeds scattered by chance.

Where there is no difficulty there is no praise.

They make a rout about universal liberty, without considering that all that is to be valued, or indeed can be enjoyed by individuals, is private liberty.