Do you not know me, father?

Lancelet
Do you not know me, father?
Gobbo
Alack, sir, I am sandblind. I know you not.
Lancelet
Nay, indeed, if you had your eyes, you might
fail of the knowing me. It is a wise father that
knows his own child. Well, old man, I will tell you
news of your son. He kneels. Give me your blessing.
Truth will come to light, murder cannot be hid
long—a man's son may, but in the end, truth will
out.