'If you want to know what a person is like "deep down," observe them in their still-functioning old age, where they finally express everything they have held back for so long, often in terms of bitterness and resentment. Or sometimes it may be even the display of generosity and joy. One of the truths emphasized by the "ages of life" tradition is that each stage is related to another. How we have navigated and been formed by one stage orders the next. And, conversely, our older selves will shape our younger brethren as well as illumine our own pasts. In a sense, then, old age - senectus - is the time when we are shown for we are, in terms of our responsible selves, as we prepare to stand before God. The old teach the young; but they teach the young only in a way that exposes their own form. The old are thereby judged.'
Ephraim Radner, A Time to Keep, p.150.