the beauty of operation lies in one heart: it refers to the clever use of the art of war, which lies in being good at thinking.
what you learn is not useful: what you learn is not useful in the future. Metaphor learning is out of touch with practice.
make the best use of everything: make the best use of everything where it is available. Refers to making full use of resources and not wasting at all.
do whatever it takes: extreme: exhaustive. The original intention is to work hard everywhere. Now refers to doing bad things by any extreme means.
wasting one's mind: it means wasting one's mind. With "in vain".
selfish use: private: personal; Personal use: act subjectively. Act only according to your own mind
use your heart and stomach: use your mind and be evil.
use your heart: use your heart. With "make the heart lucky".
eat sparingly: save: save. Describe life as very frugal
Give up the right to use the road: right: contingency. Refers to changing the usual way to meet the needs of reality
Eat less and scrimp: that is, scrimp.
How to kill a chicken with an ox knife? Why kill a chicken with an ox knife? It is a metaphor that it doesn't take much effort to do small things.
Discard defects and use them:
Only use them according to quantity:
Measure materials and use them:
Don't cut them, but use an axe:
Do two things at once: it means taking appropriate measures according to different situations.
personal use is small: personal use: only act according to one's own subjective intention, and seek advice from others sincerely. Subjective and arbitrary, you can't do great things.
keep the troops for a thousand days, and use them for a while: support and train the troops at ordinary times, so as to use them to fight at critical moments. Refers to the usual accumulation of livestock strength, when necessary, use it at once.
A thousand days' training of the army can be used at one time: to support and train the army at ordinary times, so as to fight with soldiers at critical moments. Refers to the usual accumulation of livestock strength, when necessary, use it at once.
Use my family belongings: if you are appointed, you will come out to work, but if you are not appointed, you will retire. This is the attitude of doctors in early times.
one for two purposes: one thing can be used for two purposes.
don't use the suspect, don't doubt the user: don't use the suspect, and don't doubt the user. Refers to the employer should fully trust.
A hero is useless: a metaphor for having talent but no place or opportunity to display it.
Use your belongings: if you are appointed, you will come out to work, but if you are not appointed, you will retire. This is the attitude of doctors in early times.
use one as ten: a metaphor for outnumbering.
keep one's word: describes having great trust in someone. With "do as you say".
single husband's use: it means that only one person can be used, but not both.
employing someone other than himself: employing inappropriate talents. Refers to improper employment.