It is through suffering that learning comes.

Those who would learn must suffer. In our own despair, against our will, wisdom comes to us.

Oh, it is easy for the one who stands outside the prison-wall of pain to exhort and teach the one who suffers.

For wherein is life sweet to him who suffers grief?

For a deadly blow let him pay with a deadly blow: it is for him who has done a deed to suffer.

Still to the sufferer comes, as due from God, a glory that to suffering owes its birth.

By suffering comes wisdom.