#168-1. If you look for the bad in people expecting to find it, you surely will.
#168-2. Wisdom doesn't automatically come with old age. Nothing does - except wrinkles. It's true, some wines improve with age. But only if the grapes were good in the first place.
#168-3. Don't watch the clock; do what it does. Keep going.
The converse of the first quote is also true. If we look for the good in people, we will surely find something.
The second might sound negative but one positive way to look at it is, wisdom is not correlated with age so a young person might also come out with a wise suggestion.