Be sure that your mind never retires. It must be like a
parachute, which is no good unless it opens up. Be open and
receptive to new ideas. I have seen men of 65 and 70 retire.
They seemed to rot away, and in a few months passed on. They
obviously felt that life was at an end. Retirement can be a new
venture, a new challenge, a new path, the beginning of the
fulfillment of a long dream. It is inexpressibly depressing to
hear a man say, “What shall I do now that I am retired?” He is
saying in effect, “I am mentally and physically dead. My mind
is bankrupt of ideas.”
All this is a false picture. The real truth is that you can
accomplish more at 90 than you did at 60, because each day
you are growing in wisdom and understanding of life and the
universe through your new studies and interest.