Terms for subject Idiomatic containing сей

Russian	English
быть не от мира сего	have one's head in the clouds (Bobrovska)
быть не от мира сего	be in the clouds (Bobrovska)
кто сеет ветер, пожнёт бурю	sow the wind and reap whirlwind
не от мира сего	Johnny Head-in-Air (VLZ_58)
не от мира сего	out in the left field (Sally is a lot of fun, but she is sort of out in the left field. • What a strange idea. It is really out in the left field. goorun)
ни с того ни с сего	just like that (suddenly and, sometimes, unexpectedly: The alarm went off, just like that. • We were jogging slowly in the park when, just like that, she collapsed. Andrey Truhachev)
ни с того ни с сего	out of left side (Eranwen)
ни с того ни с сего заговорить	go off at a tangent (He went off at at a tangent about his love affairs – Он ни с того ни с сего заговорил о своих любовных связях VLZ_58)
сеять вражду	cause bad blood (Andrey Truhachev)
сеять панику	sow confusion ("[The fire alarm] had been activated shortly before the shots began, perhaps an effort by the gunman to sow confusion." (NYT) Yuri Ginsburg)
сеять панику	cry wolf (без причины Val_Ships)
сеять сомнения	sow the seeds of doubt (Yeldar Azanbayev)
сеять страх	sow fear (CNN Alex_Odeychuk)
сильные мира сего	the high and the mighty (Alex_Odeychuk)
сильные мира сего	the powerful (Andrey Truhachev)