Alexander, the king of the Macedonians, used to boast that he had never been worsted by anybody in a contest of benefits. If so, it was no reason why, in the fullness of his pride, he should despise the Macedonians, Greeks, Carians, Persians, and other tribes of whom his army was composed, nor need he imagine that it was this that gave him an empire reaching from a corner of Thrace to the shore of the unknown sea. Socrates could make the same boast, and so could Diogenes, by whom Alexander was certainly surpassed; for was he not surpassed on the day when, swelling as he was beyond the limits of merely human pride, he beheld one to whom he could give nothing, from whom he could take nothing? King Archelaus invited Socrates to come to him. Socrates is reported to have answered that he should be sorry to go to one who would bestow benefits upon him, since he should not be able to make him an adequate return for them. In the first place, Socrates was at liberty not to receive them; next, Socrates himself would have been the first to bestow a benefit, for he would have come when invited, and would have given to Archelaus that for which Archelaus could have made no return to Socrates.