He is an active advocate of positive psychology, including positiveeducation practices and writing books like a Primer in positive psychology.
他积极推广积极心理学，通过积极教育实践和著述，例如《积极心理学入门》。
2
Therefore, in order to protect the healthy growth of teenagers, preventing and reducing crime, need for juvenile positiveeducation of legal system, correct guidance.
因此，为了保护青少年健康成长，预防和减少犯罪，就需要对青少年进行正面的法制教育，正确引导。
3
Therefore, in order to protect the healthy growth of teenagers, preventing and reducing crime, need for juvenile positiveeducation of legal system, correct guidance.