From Alexander the grammarian: not to leap on mistakes, or captiously interrupt when anyone makes an error of vocabulary, syntax, or pronunciation, but nearly to introduce the correct form of that particular expression by way of answer, confirmation, or discussion of the matter itself rather than its phrasing - or by some other such felicitous prompting.

 

Form Fronto: to understand the effect of suspicion, caprice, and hypocrisy in the exercise of absolute rule; and that for the most part these people we call 'Patricians' are somewhat short of human affection.

 

From Alexander the Platonist: rarely, and never without essential cause, to say or write to anyone that 'I am too busy'; nor to use a similar excuse, advancing 'pressure of circumstances', in constant avoidance of the proprieties inherent in our relations to our fellows and contemporaries.

 

From Catulus: not to spurn a friend's criticism, even if it may be an unreasonable complaint, but to try to restore his usual feelings; to speak of one's teachers with wholehearted gratitude, as it recorded of Domitius and Athenodotus; and a genuine love for children.