古训的英文：
maxim/precept from ancient times; old adage
n. 格言，座右铭；准则
The list of maxim is not settled.
格言的内容不完全固定。
In order to maximize profit the firm would seek to maximize output.
为了获得最大利润，这家公司会把产量增至最大。
A good maxim is never out of season
至理名言不会过时
n. 准则，规诫，箴言
Example is better than precept
经验是最好的教师
Practice is better than precept.
身教胜于言教。
The son had well profited by the precept and example of the father.
老太爷的言传身教早已使他儿子获益无穷。
adj. 古代的；古老的；过时的；年老的
n. 老人；古代人
He belongs to an ancient house.
他是一个古老家族的后裔。
Antiquated;ancient;long obsolete.
过时的；古老的；久已作废的
The ancient palace has a lot of atmosphere.
这座古老的宫殿很有魅力。