si vis pacem, para bellum (L.), if you wish peace, be ready for war.
solventur risu tabulæ (L.), the bills will be dismissed with laughter—you will be laughed out of court.
solvitur ambulando (L.), [the problem] is solved by walking—by practical experiment.
s'orienter (Fr.), to take one's bearings.
spero meliora (L.), I hope for better things.
splendide mendax (L.), splendidly false [for a good purpose]—lying in state.
sponte suâ (L.), of one's own accord.
spretæ injuria formæ (L.), the insult of beauty slighted.
stans pede in uno (L.), standing on one foot.
stat pro ratione voluntas (L.), my will stands in place of reason.