to waste your energy attacking imaginary enemies
ORIGIN: From Cervantes' novel Don Quixote , in which the hero thought that the windmills he saw were giants and tried to fight them.
to waste your energy attacking imaginary enemies
ORIGIN: From Cervantes' novel Don Quixote , in which the hero thought that the windmills he saw were giants and tried to fight them.
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005