I heard that everyone will become one of two types when he gets old, an old man or an elder. Everyone can become an old man as long as he is old enough, but not everyone can become a respected elder.
It is said that only you can give yourself a sense of security, but this should include three meanings. The first is that you can support yourself; the second is that you can face your own loneliness; and the third is that you can bring yourself happiness!
