For neither goodness nor generosity nor courtesy can exist, any more than friendship can, if they are not sought of and for themselves, but are cultivated only for the sake of sensual pleasure or personal advantage.
 Marcus Tullius Cicero, On Duties (44 BC). copy citation

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Author Marcus Tullius Cicero
Source On Duties
Topic friendship goodness
Date 44 BC
Language English
Reference
Note Translated by Walter Miller
Weblink http://www.constitution.org/rom/de_officiis.htm

Context

“for they hold that the height of pleasure is found in the absence of pain. Justice totters or rather, I should say, lies already prostrate; so also with all those virtues which are discernible in social life and the fellowship of human society. For neither goodness nor generosity nor courtesy can exist, any more than friendship can, if they are not sought of and for themselves, but are cultivated only for the sake of sensual pleasure or personal advantage. Let us now recapitulate briefly. {119} As I have shown that such expediency as is opposed to moral rectitude is no expedieney, so I maintain that any and all sensual pleasure is opposed to moral rectitude.” source