From: http://www.mythfolklore.net/proverbs/MFProverbs-03.htm

3.170  Animum debes mutare, non caelum.
   debeo, -ere, debui, debitus.  to owe, be obliged.
   caelum, -i.  sky, heaven.

3.186  Inter dominum et servum nulla amicitia.
   inter (prep + acc.).  between, among.
   dominus, -i.  lord, master.
   servus, -i.  slave, servant.
   amicitia, -ae.  friendship.