Mohamed ElBaradei

By irreducibly complex I mean a single system composed of several well-matched, interacting parts that contribute to the basic function, wherein the removal of any one of the parts causes the system to effectively cease functioning.

I don't know why everyone feels the pressure to look young. Personally, I hate it. I don't want to inject Botox and look young forever. It's living in denial and anything that has an undercurrent of this philosophy is bad for your growth.