This little poem comes from Disticha de Educatione of Urbano Appendini, published in 1834; you can see the whole book at Google Books.
Iam mihi, terra, vale: vos cuncta creata, valete!
Elevor: ad caelum me potiora vocant.
The vocabulary is keyed to the DCC Latin Vocabulary list. There is only one word in this poem that is not on the DCC list:
ēlevo, -āre - lift up, raise up, lighten
ad: to, up to, towards (+acc.)
caelum -ī n.: sky, heavens
creo -āre: produce, create; elect, choose
cūnctus -a -um: entire all together
ego me mihi mē: I, me
iam: now; already
potis -e: powerful, able
terra -ae f.: land
valeo valēre valuī: be strong, excel, be valid, prevail; valē, farewell!
voco -āre: call
vōs: you (pl.); (gen.) vestrum/vestrī, (dat./abl.) vobis, (acc.) vōs
