Which preposition to use with humanitas

in Occurrences 1%

From such passages we might conjecture, even if we knew nothing more about him, that Sulpicius was a man of very fine clay, of real humanitas in the widest sense of that expressive word; and this is entirely borne out in other ways.

of Occurrences 1%

They did it too, helping each other by kindly and cheering intercourse,the humanitas of daily life.

Which preposition to use with  humanitas