"The world is not to be enjoyed, but to be overcome."

"One day, we shall all be ashes."

"Human life is a business that does not pay its expenses."

"The difficulty is to try and teach the multitude that something can be true and untrue at the same time."

"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."