R

Radicitus, comes! - Really rad, dude!

Radix lecti - Couch potato

Raptus regaliter - Royally screwed

Rara avis - A rare bird

Ratio et consilium propriae ducis artes - Reason and deliberation are the proper skills of a general

Re vera, cara mea, mea nil refert - Frankly my dear, I don't give a damn

Redde Caesari quae sunt Caesaris - Render unto Caesar the things that are Caesar's

Regnat non regitur qui nihil nisi quod vult facit - He is a king and not a subject who does only what he wishes. (Syrus)

Relata refero - I tell what I have been told. (Herodotos)

Rem tene, verba sequentur - Keep to the subject and the words will follow. (Cato Senior)

Repetitio est mater memoriae/ studiorum/ - Repetition is the mother of memory/studies

Requiescat in pace - Let him/her rest in peace. (May he/she rest in peace)

Rerum concordia discors - The concord of things through discord. (Horace)

Res firma mitescere nescit - A firm resolve does not know how to weaken

Res severa est verum gaudium - True joy is a serious thing. (Seneca)

Respice post te, mortalem te esse memento - Look around you, remember that you are mortal. (Tertullianus)

Respice, adspice, prospice - Examine the past, examine the present, examine the future (look to the past, the present, the future)

Revelare pecunia! - Show me the money!

Rex regnant sed non gubernat - The king reigns but does not govern

Rident stolidi verba Latina - Fools laugh at the Latin language. (Ovid)

Ridentem dicere verum quid vetat? - What prevents me from speaking the truth with a smile? (Horace)

Risu inepto res ineptior nulla est - There is nothing more foolish than a foolish laugh. (Catullus)

Romani ite domus - Yankee go home! (Monty Phyton's The Life of Brian)

Romani quidem artem amatoriam invenerunt - You know, the Romans invented the art of love

Rumores volant. / Rumor volat - Rumors fly. / Rumor flies