Frailty, thy name is human!
An amiable weakness.
After a certain point, all natural bodily changes are for the worst.
If "Frailty, thy name is woman", Frailty must be a man named as 'woman
Frailty thy name is woman!
And I think the answer is that we are, in reality, terribly frail animals. And we don't like to be reminded of how frail we are—how delicate the balances are inside our own bodies, how short our stay...
We all are men, in our own natures frail, and capable of our flesh; few are angels.