All those who would understand the construction of pronouns, should take
care to be well versed in the distinction between _meum_ and _tuum_,
ignorance of which often gives rise to the disagreeable necessity of
becoming too intimately acquainted with _quod_.
Mei, of me, tui, of thee, sui, of himself, nostri, of us, vestri, of
you, (the genitive cases of their primitives ego, tu, &c.) are used when
a person is signified, as
Languet desiderio tui:
He languishes for want of you.
You cannot give a more acceptable piece of information than the above,
to any young lady. The fairer and more amiable sex always like to have
something-- if not to love, at least to pity.