(Mishnah): If one wounded his friend, he is liable for five categories of payment: Nezek, pain, Refu'ah (medical expenses), Sheves (compensation for loss of wages until he can work again), and embarrassment.

How do we evaluate Nezek? If he blinded his eye, cut off his hand or broke his leg, we evaluate the loss of Shimon's value (if he would be sold to be a slave).

Pain - if he burned him with a spit or nail, even on his fingernail, in a place that does not make a wound, we evaluate how much a person like this would ask to receive in order to be pained this way.

(Gemara - Beraisa): If one wounded his friend five (all the ways taught in this and the coming two Mishnayos), he gives to him five [payments. If he damaged him in] four [ways], he gives to him four; three, he gives to him three; two, he gives to him two; one, he gives to him one.

How is this? If he hit him on his hand and cut it off, he gives to him five - Nezek, pain, Refu'ah, Sheves, and embarrassment;

If he hit him on his hand and it swelled (and it will heal), he gives to him four - pain, Refu'ah, Sheves, and embarrassment;

If he hit him on his head and it swelled (and it will heal), he gives to him three - pain, Refu'ah, and embarrassment;

If he hit him in a place that is not seen, he gives to him two - pain and Refu'ah;

If he hit him [in front of others] with a bundle of documents in his hand, he gives to him one - embarrassment.

Question (R. Yirmeyah): If he cut off his hand, and later cut off higher [on his arm, there is only one payment of Nezek], does he pay pain [separately] for the first act [or one payment for both? This is not resolved. We explained based on TOSFOS 85b DH Nehi.]

Question: It says "Ayin Tachas Ayin Shen Tachas Shen'', and elsewhere it says "v'Lo Sachos Einecha [...Ayin b'Ayin...]''! (Why are both needed?)

Answer: They teach that Shogeg and Mezid are the same. (Both pay money. We do not remove the damager's eye.)

Question: The Torah could have taught about Shogeg, and it would not need to teach about Mezid!

Answer: Had it taught Shogeg, and not said Mezid, I would say that Shogeg pays money, and Mezid does not pay anything (rather, we truly remove his eye)! Therefore, it needed to say Shogeg and it needed to say Mezid;