What is the idiom of concentrating resources on one thing and giving up some other things?

Go all out [ quán lì yǐ fù ]

Basic Interpretation

To put all one's strength into it.

Originality

Qing Dynasty - Zhao Yi, "Notes on the Twenty-Two Histories": "At that time, the recommendation and selection of candidates were based on honor; therefore, all those who could get a name would do their best to get there; they were good at it; and it became a custom to do so."

The heart is not preoccupied

Spelling:

xīn wú páng wù

Interpretation:

The mind has no other pursuits. The first is that the mind is focused on the other; the second is that the mind is not focused on the other; the third is that the mind is not focused on the other.

Origin:

Bingxin, "Talking about Letter Envelopes": "There are many people like me; in writing letters; like in a white paper; or only with the road on the paper; without constraints; without distractions in the lyrics."