"There is nothing in the world more trustworthy than a friend one is sure will betray everything confided to him, nothing more trustworthy if only one is careful about what is confided to him. it is unsafe to ask a friend to tell this or that, but if one confides to him under the pledge of secrecy something one wishes to come out, then one can be absolutely sure, for then it must come out. Furthermore, it is a rare good fortune if in turn such a friend has a friend, and in turn this friend has a girlfriend-then it travels with the speed of lightning."