A truly great book should be read in youth again in maturity and once more in old age as a fine building should be seen by morning light at noon and by moonlight.

Believe me that was a happy age before the days of architects before the days of builders.

The answer to old age is to keep one's mind busy and to go on with one's life as if it were interminable. I always admired Chekhov for building a new house when he was dying of tuberculosis.