fixed and unchangeable
неподвижный и неизменный (nepodvizhnyy i neizmennyy)
"The script isn’t cast in stone; we can make changes."
"Сценарий не каст ин стоун; мы можем внести изменения." (Stsenariy ne **kast in stoun**; my mozhem vnesi izmeneniya.)
I agree with your idea or opinion
to choose not to participate
to fail completely or embarrass oneself
difficult situations will improve over time
to feel very proud and confident
to speak confidently about something