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Ζῆν οὐκ ἄξιος, ὅτῳ μηδὲ εἷς ἐστι χρηστὸς φίλος → Life is not worth living if you do not have at least one friend.
P. and V. δύσκολος.
rash: P. προπετής, P. and V. θρασύς.
wanton: Ar. and P. νεανικός.
be petulant, v.: Ar. and P. νεανιεύεσθαι.