This is a fault common to all singers, that among their friends they will never sing when they are asked; unasked, they will never desist.Horace
To have a great man for a friend seems pleasant to those who have never tried it; those who have, fear it.Horace
Let me tell you I am better acquainted with you for a long absence, as men are with themselves for a long affliction: absence does but hold off a friend, to make one see him the truer.Ovid