Wealth is the ability to fully experience life.

The cost of a thing is the amount of what I will call life which is required to be exchanged for it, immediately or in the long run.

If I knew for a certainty that a man was coming to my house with the conscious design of doing me good, I should run for my life.

There is no more fatal blunderer than he who consumes the greater part of his life getting his living.

Nature and human life are as various as our several constitutions. Who shall say what prospect life offers to another?