648. The Road to Self-improvement

Protect Forests Protect Oxygen Source

Learn to Refuse Properly and KindlyTime Filters False Feelings Leaves True Ones

Interpersonal Politeness Reflects Self-CultivationFamily Love Accompanies Our Whole LifeFriendship Needs No Empty Words Only Sincerity

Learn to Share Happiness and SorrowKeep Pure Heart in Complex Interpersonal Life

Warm Words Change Others’ Mood

Mutual Understanding Maintains Long-Term RelationshipEnvironmental Protection Starts From Small Things

Preserve Natural Scenery ForeverReduce Paper Waste Protect Forests

Everyone Is Responsible for Environmental ProtectionControl Industrial Pollution Strictly

(责任编辑：陈慧恬)