主体 しゅたい せい
shutaisei

Noun

1. independence of will or action; self-direction; autonomy; initiative; identity

学生 がくせい自分 じぶん主体 しゅたい せい見失 みうしなってはならない。
gakusēwa jibunno shutaisēo miushinattewa naranai.
A student should not lose sight of his own identity.