aequam memento rebus in arduis servare mentem

== Latin == === Etymology === Due to Horace; see first quotation. === Pronunciation === (Classical Latin) IPA(key): [ˈae̯.kʷãː mɛˈmɛn.toː ˈreː.bʊs ˈɪn ˈar.du.iːs sɛrˈwaː.rɛ ˈmɛn.tẽː] (modern Italianate Ecclesiastical) IPA(key): [ˈɛː.kʷam meˈmɛn.to ˈrɛː.bus ˈin ˈar.du.is serˈvaː.re ˈmɛn.tem] === Proverb === aequam mementō rēbus in arduīs servāre mentem Remember to keep a clear head in difficult times. 23 BCE, Horace, Odes, book II, poem III, lines 1–2,