HODIE (Roman Calendar): ante diem quartum Idus Septembres.
MYTHS and LEGENDS: The art image for today's legend shows Thetis Consoling Achilles; you can also see the legends for the current week listed together here.
TODAY'S MOTTOES and PROVERBS:
TINY PROVERBS: Today's tiny proverb is: Iracundiam rege (English: Control your anger).
3-WORD MOTTOES: Today's 3-word verb-less motto is Volens et valens (English: Willing and able).
ANIMAL PROVERBS: Today's animal proverb is Pisces vorant maiores minores (English: The bigger fish eat the littler ones).
POLYDORUS: Today's proverb from Polydorus is: Non est opus valentibus medico (English: People who are well have no need of a doctor).
PROPER NAME PROVERBS: Today's proper name proverb from Erasmus is Nil Crotone salubrius (English: There is no place healthier than Crotona; from Adagia 2.4.43 - Crotone is on the Ionian Sea in southern Italy, and was famous for its prosperous and healthy lifestyle, exemplified by the famous strong-man Milo of Crotone).
GREEK PROVERBS: Today's proverb is Μὴ κίνει κακὸν εὐ κείμενον (English: Don't disturb an evil thing that is sitting pretty).
BREVISSIMA: The distich poster for today is Multa Adhuc Latent Homines. Click here for a full-sized view.
And here are today's proverbial LOLcats:
MILLE FABULAE: The fable from the Mille Fabulae et Una widget is Asinus Res Sacras Portans, the story of a self-important donkey.
FABULAE FACILES: The fable from the Fabulae Faciles widget is Catus et Gallus, the story of the cat who attacked the poor rooster (this fable has a vocabulary list).
Words from Mythology. For more about the god MERCURIUS and MERCURIAL, see this blog post.