"Buying books would be a good thing if one could also buy the time to read them in: but as a rule the purchase of books is mistaken for the appropriation of their contents."

"Sleep is the interest we have to pay on the capital which is called in at death; and the higher the rate of interest and the more regularly it is paid, the further the date of redemption is postponed."

"The greatest of follies is to sacrifice health for any other kind of happiness."

"The only original philosophical thought is that life is not worth living."

"The truest philosophy is to learn to live with what is."