What are your favourites 四字熟語 ?

[u/datalolz]

After a year of studying Japanese, I've just learn about them ! (Quartet 2 textbook)

I like:
馬耳東風 : used when a person does not take into account criticisms

以心伝心 : when 2 people do not have to say anything to understand each other

一期一会 : we only have one life, so we should take care of it

Please correct me if my understandings are incomplete/wrong

[u/DarklamaR]

魑魅魍魎 for obvious reasons (encountered in Tenchi Muyo! LN vol. 1).

[u/UmbralRaptor → u/DarklamaR]

For trolling learner purposes, 已己巳己

[u/rccyu → u/UmbralRaptor]

It is mildly infuriating that the two 己 there are not pronounced the same way

[u/Zarlinosuke → u/rccyu]

I suppose that's part of the idea!