Volo, non valeo - I am willing but unable
Volvptates commendat rarior vsvs - Infrequent use commends pleasure. (moderation in all things)
Vos vestros servate, meos mihi linquite mores - You cling to your own ways and leave mine to me. (Petrarch)

Vox clamantis in deserto

Voice crying in the desert. (voice in the wilderness unheeded warning, an opinion not in the mainstream

Vox populi, vox Dei - The voice of the people is the voice of God. (Public opinion is obligatory)
Vox populi - The voice of the people
Vrbi et orbi - To the city and to the world. (preface of Papal documents)
Vulnerant omnes, ultima necat - Every (hour) wounds, the last kills. (sundial inscription)
Vulpem pilum mutat, non mores - A fox may change its hair, not its tricks. (People change behaviour but not their aims)
Vultus est index animi - The face is the index of the soul/mind