quietly
131On Horsemanship — is the English title usually given to Περὶ ἱππικῆς, peri hippikēs, one of the two treatises on horsemanship by the Athenian historian and soldier Xenophon (c. 430 – 354 BC). Other common titles for this work are De equis alendis and The Art of… …
132observe — verb 1 notice/watch ADVERB ▪ carefully, closely ▪ precisely ▪ directly ▪ It is not possible to observe this phenomenon directly. ▪ …