The difference between them is that Callicles takes the further step of identifying the authority of nature with that of real, as opposed to conventional morality, whereas for Thrasymachus there is only one kind of morality, conventional morality, which has no authority.
In Jena, this same desire is reflected in the enormously popular series of public lectures on "Morality for Scholars," which he began to deliver immediately upon his arrival in Jena.
I might be required by my non-egoist morality to make a sacrifice for which I cannot be compensated (or pass up a gain so large that passing it up will not be compensated for).
The SEP entry Locke's Moral Philosophy by Patricia Sheridan provides an excellent discussion of Locke's views on morality and issues related to them for which there is no room in this general account.
Those parts of the self for which there is no place in the harsh "morality" that is being imposed are thereafter denied.
Those who subscribe to that morality or, rather, live it out, perform acts of generosity and caring for which they need give no impartial justification.
This trial and its verdict is seen as heralding "a new wave of sexual 'morality' for which the 1960s is now famous".
He needs to remind the public why it voted for him in the first place -- not for his personal morality, which most Americans have always considered flawed, but for his intelligence, his empathy and his ability to articulate the concerns of ordinary citizens.
By sustaining various beliefs, he carried aspects of the 19th century forward into the age of Duchamp: a cultural morality, for instance, according to which he regarded art as pure, something from the heart, inimitable or else not art.
