preface
Note
Content structure

Lesson 1: Stop making promises you can't keep!
Lesson 2: The presidential system should be changed to a two-term system.
Lesson 3: Podcasts: Alternative Media or Propaganda?
Lesson 4: Faceless Angels in Daeshin-dong Donate Secretly Again This Year
Lesson 5: Violent Crime: Is the Death Penalty the Answer?
Lesson 6: Aging South Korea
Lesson 7: What is the happiest country in the world?
Lesson 8: Is the Coeducational Principle Being Broken in the United States?
Lesson 9: Smokers, No More Place
Lesson 10: Is Violation of Celebrity Privacy Inevitable?
Lesson 11 and 19: Rational Decisions Require Rational Review Criteria
Lesson 12: Development or Conservation?
Lesson 13: Nuclear Power: A Blessing or a Disaster
Lesson 14: Love confession in the amusement park
Lesson 15: Are Genetically Modified Agricultural Products Really Safe?
Lesson 16: Korean Education, Recognized Worldwide
Lesson 17: The Nation Survives When Science and Engineering Prosper
Lesson 18: Are Alternative Schools Really Alternatives?
Lesson 19: State or Market?
Lesson 20: Coffee is good?
Lesson 21: Large supermarkets grimace over mandatory closures
Lesson 22: Animal Protection or Animal Abuse?
Lesson 23: Globalization of Korean Food: From Consideration for Others
Lesson 24: Smart Technology in Everyday Life
Lesson 25: North Korea's Declaration of Nuclear Possession: What is the Solution?
Lesson 26: Relations with North Korea: Both the Carrot and the Stick Are Needed
Lesson 27: Shortening the military service period: What are the problems?
Lesson 28: Eco-friendliness: Starting with small habits in daily life
Lesson 29: Arctic Ice Cover Record Low
Lesson 30: The River Comes Back, the Fish Return