In late June, the third World Con­gress on Pos­i­tive Psy­chol­o­gy con­vened lead­ing sci­en­tists to explore the keys to a hap­py and mean­ing­ful life. Here are three of the most strik­ing and prac­ti­cal insights from the conference. Fif­teen years after emerg­ing as a major sci­en­tif­ic move­ment, it’s clear that pos­i­tive psychology—the study of what brings hap­pi­ness…