◎ 老马识途 lǎomǎ-shítú[an experienced man knows the ropes;knowledge of a veteran; an old hand is a good guid as an old horse knows the way; the devil knows many things because he is old] 比喻富于经验堪为先导 老马识途添病骨,穷猿投树择深枝。——清· 黄景仁《两当轩集》-----------------国语辞典：春秋时齐相管仲，随桓公出征，在回程时迷路，于是让老马走在前头，其余人马跟随在后，终于找到原路。典出《韩非子．说林上》。后称经历丰富练达的人。也作「识途老马」。近谙熟门路反暗中摸索
◎ 老牛舐犊 lǎoniú-shìdú[an old cow licking her calf—parents doting on their children] (舐:舔;犊:小牛)。老牛爱小牛,故常以舌舔之。比喻人之疼爱其子女 愧无日磾先见之明,犹怀老牛添犊之爱。——《后汉书·杨彪传》-----------------国语辞典：老牛爱护小牛。比喻人私爱子女。《后汉书．卷五四．杨震传》：「愧无日䃅先见之明，犹怀老牛舐犊之爱。」