It is through suffering that learning comes.
From a small seed a mighty trunk may grow.
Pleasantest of all ties is the tie of host and guest.
There is no pain so great as the memory of joy in present grief.
By polluting clear water with slime you will never find good drinking water.
So in the Libyan fable it is told That once an eagle, stricken with a dart, Said, when he saw the fashion of the shaft: With our own feathers, not by others' hands, Are we now smitten.