Most significant period of human development?

Perhaps when a person begins to understand just how precious life is. Someone answered a similar question by saying "Young and middle age". But what about old age, is this time in ones life not as important? When one grows older and perhaps retired, they can do all of those thing they missed doing in earlier years.

It is this old codgers opinion that between the ages of four years and twenty are the most important. This period is what I would call the learning years, a period which will enable you to understand the responsibilities in life, and how to face up to them.

There can be no minute, hour, day or year which is the most important. All of these time periods will hold something dear to you. Something that will have you thinking "I am glad I lived through that period of my life".

I have often said on this program that "Time fly's on wings of lightning, you cannot call it back". Every second you draw breath is the most important period in ones life.