To know nothing is the happiest life....

The nearer people approach old age the closer they return to a semblance of childhood, until the time comes for them to depart this life, again like children, neither tired of living nor aware of death.

Everyone knows that by far the happiest and universally enjoyable age of man is the first. What is there about babies which makes us hug and kiss and fondle them, so that even an enemy would give them help at that age?

The desire to write grows with writing.

Anyone who stops learning is old, whether at twenty or eighty. Anyone who keeps learning stays young. The greatest thing in life is to keep your mind young.

There is a fountain of youth: it is your mind, your talents, the creativity you bring to your life and the lives of people you love. When you learn to tap this source, you will truly have defeated age.

Life would be infinitely happier if we could only be born at the age of eighty and gradually approach eighteen.

Probably the happiest period in life most frequently is in middle age, when the eager passions of youth are cooled, and the infirmities of age not yet begun as we see that the shadows, which are at morning and evening so large, almost entirely disappear at midday.