无所顾忌 (wú suǒ gù jì) — to stop at nothing; to be unscrupulous (four-character idiom)

A drawing of the thing itself, worn down over three thousand years into a few strokes.

This origin belongs to the traditional form 無; 无 is its simplified writing.

For the simplified 无, the story is about 無. 無 drew a person dancing with ox tails held in both hands to pray for rain, then was borrowed for 'have no', so the picture does not explain that meaning.

Most characters — around four in five — are built this way: one part hints at the meaning, the other at the pronunciation.

所 pairs 斤, an axe, with 戶, which gives the sound hù; the old meaning was the sound of logging.

Most characters — around four in five — are built this way: one part hints at the meaning, the other at the pronunciation.

This origin belongs to the traditional form 顧; 顾 is its simplified writing.

The traditional form 顧 combines 雇 as a sound part and 頁 as a meaning part; 顾 is the simplified form of 顧.

Most characters — around four in five — are built this way: one part hints at the meaning, the other at the pronunciation.

忌 combines 己, which gives the sound, with 心, the heart, as the part connected to the meaning.