0-10: Everything is fresh and new, life is an adventure with endless possiblities.
10-20: Life is making more sense, we know all we need to know.
20-30: We realize we don't know as much as we thought; life has a few surprises in store yet.
30-40: General recognition that life is unpredictable, and we realize every step causes a tremor.
40-50: We are approaching what we deem middle-age, although who knows? The only thing we know is that we are slowing down, becoming obsolete.
50-60: Still some use, but only when we want to be.
60-70: Time of reminescence, to reflect on what we have done, and to wonder about the end.
70-80: Thinking becomes erratic; life is joyful, life is sorrowful. We know less than we did only a short while before.
80-90: We know still less-the world has passed us by. Death looms around every corner.
90-100: We meditate, because that's all we can do. Let Death come now!!
100-?: Tranquility, peace, darkness. A rebirth?