Death is a punishment to some, to others a gift and to many a favour.

Poverty with joy isn't poverty at all. The poor man is not one who has little, but one who hankers after more.

Health is the soul that animates all the enjoyments of life, which fade and are tasteless without it.

No work is of such merit as to instruct from a mere cursory perusal.

A single lifetime, even though entirely devoted to the sky, would not be enough for the study of so vast a subject. A time will come when our descendants will be amazed that we did not know things that are so plain to them.

As for old age, embrace and love it. It abounds with pleasure if you know how to use it. The gradually declining years are among the sweetest in a man's life, and I maintain that, even when they have reached the extreme limit, they have their pleasure still.

Certain laws have not been written, but they are more fixed than all the written laws.