プログレッシブ和英中辞典(第4版)の解説
くんし【君子】
a man of virtue; a (true) gentleman
君子危うきに近寄らず
A wise man 「keeps out of [keeps away from/does not court] danger.／((諺)) Fools rush in where angels fear to tread.
君子は独りを慎む
A man of virtue behaves properly even when (he is) alone.
君子は豹変(ひょうへん)す
Wise men are quick to adapt themselves to circumstances.