I don't pretend to understand the Universe - it's ...

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

It were a real increase of human happiness, could all young men from the age of nineteen be covered under barrels, or rendered otherwise invisible and there left to follow their lawful studies and callings, till they emerged, sadder and wiser, at the age of twenty-five.

None of us will ever accomplish anything excellent or commanding except when he listens to this whisper which is heard by him alone.

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.