PanARMENIAN.Net - The office of Armenia’s third president, Serzh Sargsyan, published a Facebook post titled: “Lesson of the day about the psychology of fools or those pretending to be so when convenient.”The post included the following quotations:“Never argue with fools. They will drag you down to their level, where you have no chance of winning.” — Mark Twain. “Only two things are infinite: the universe and human stupidity. And I’m not so sure about the universe.” — Albert Einstein. The post comes amid renewed tensions between current Prime Minister Nikol Pashinyan and former Armenian presidents.