痴心妄想: fond dream; daydreaming; an idle dream; a pipe dream; a silly notion; aspire [hanker] after the impossible; be infatuated with and indulge in vain hopes; be obsessed with (some) wild [fant
如意算盘: reckon without one's host; calculations based on wishful thinking; indulge in wishful thinking; smug (overall) calculations; the smug calculation; wishful thinking
