Old memories

While arranging old luggage found out several instruments and devices for experimental researches of good old age studying and making developing experiments 40 years ago. Greatly am I embarrassed how to treat those old literature and bibles in my field, where to keep or desert all of them? Really interesting memories in my live as a researcher comes up in my mind as if the impressive incidents happened yesterday. I'm too old to open new field aggressively from now, but staying in the situation now is not my favor, find out another way and proceed to different direction from old days, let's consider about that deeply before I go up to heaven.