Old age has always been thought of as the worst age to be; but it is not 【B1】___

Old age has always been thought of as the worst age to be; but it is not necessary for the old to be unhappy. With old age should come wisdom and the ability to help others with advice wisely given. The old have the joy of seeing their children making progress in life; they can watch their grandchildren growing up around them; and perhaps best of all, they can, if their life has been a useful one, feel the happiness of having come through the battle of life safely and having reached a time when they can lie back and rest, leaving others to continue the battle.