In action a great heart is the chief qualification...

There is no absurdity so palpable but that it may be firmly planted in the human head if you only begin to inculcate it before the age of five, by constantly repeating it with an air of great solemnity.

A man can be himself only so long as he is alone.

To live alone is the fate of all great souls.

How incessant and great are the ills with which a prolonged old age is replete.

The great secret that all old people share is that you really haven't changed in seventy or eighty years. Your body changes, but you don't change at all. And that, of course, causes great confusion.

Every great architect is - necessarily - a great poet. He must be a great original interpreter of his time, his day, his age.

Once I planned to write a book of poems entirely about the things in my pocket. But I found it would be too long and the age of the great epics is past.

Age is an issue of mind over matter. If you don't mind, it doesn't matter.

Common sense is the collection of prejudices acquired by age eighteen.

The older I grow the more I distrust the familiar doctrine that age brings wisdom.

Wisdom doesn't necessarily come with age. Sometimes age just shows up all by itself.

Youth is the gift of nature, but age is a work of art.

It is utterly false and cruelly arbitrary to put all the play and learning into childhood, all the work into middle age, and all the regrets into old age.

Old age is not a matter for sorrow. It is matter for thanks if we have left our work done behind us.

Have regular hours for work and play make each day both useful and pleasant, and prove that you understand the worth of time by employing it well. Then youth will be delightful, old age will bring few regrets, and life will become a beautiful success.