To husband is to conserve strength / 當丈夫就要養精儉用(誤)

根據Merriam-Webster's Learner's Dictionary:

Full Definition of husband (transitive verb)
1 to manage prudently and economically | to use sparingly
2 (archaic) to find a husband for

Full Definition of husbandry
1 (archaic) the care of a household
2 the control or judicious use of resources
3 the cultivation or production of plants or animals | the scientific control and management of a branch of farming and especially of domestic animals