usus est tyrannus (L) Custom is a tyrant.

ut pictura poesis (L) Poetry is like painting.　― Horace, Ars Poetica 361.

V

vade in pace (L) Go in peace.　― Exod. 4: 18.

vade retro me, satana (L: get thee behind me, Satan) Stop trying to tempt me.　― Matt. 16: 23; Mark 8: 33.

vanitas vanitatum, et omnia vanitas (L) Vanity of vanities, all is vanity.　― Eccles. 1: 2.

varium et mutabile semper femina (L) Woman is ever a fickle and changeable thing.　― Virgil, Aeneis 4: 569-70.