mehr Licht! (G) More light! (Goethe の最後の言葉)

me judice (L: I being judge) in my opinion.

mens aequa (rebus) in arduis (L) an even mind in difficulties (Calcutta にある Warren Hastings の肖像の銘; cf. aequam memento…).

mensa et toro (L) ＝a mensa et t(h)oro.

mens agitat molem (L) A mind moves the mass.　― Virgil, Aeneis 6: 727.

mens sibi conscia recti (L: mind conscious to itself of rectitude) a good conscience　― Virgil, Aeneis 1: 604 (cf. conscia mens…).