4appc9.md (560B)
1 Nothing can be in more harmony with the nature of any 2 given thing than other individuals of the same species; 3 therefore (cf. vii.) for man in the preservation of his being and 4 the enjoyment of the rational life there is nothing more useful 5 than his fellow–man who is led by reason. Further, as we know 6 not anything among individual things which is more excellent than 7 a man led by reason, no man can better display the power of his 8 skill and disposition, than in so training men, that they come at 9 last to live under the dominion of their own reason. 10 11