ALL THAT GLITTERS IS NOT GOLD

meaning: many things that look attractive and valuable actually have no value at all
magyarul: nem minden arany, ami fénylik

Sam learned that all that glitters is not gold when he invested his money in the stock market and lost much of it.
Sam megtanulta, hogy nem minden arany, ami fénylik amikor a pénzét befektette a t?zsdén, és a nagyrészét elvesztette.