Hu Jiaqi: The 4th Open Letter to the Leaders of Mankind
A Lifetime's Choice, Never Regret
Hawking Raised Three Views Identical to Mine
The Third Open Letter to Human Leaders
Finally I've got a Bosom Friend
An Open Letter Addressed to Chinese President Hu Jintao and American President Obama
An Open Letter to 26 World Leaders
Imbalanced Evolution May Lead to Human Extinction
Further Development of Science and Technology Will Certainly Soon Extinguish Mankind
The World is Crazy
It Is Time for the Great Unification of Mankind
Closing Remarks of Saving Mankind
Mankind Is Not Happy
Not All Science and Technology Are Neutral
Social Development Does Not Mean Economic Growth
Sustained Development of the Economy is Not Good
Human Society Is Going Toward the Wrong Direction
The Continuous Development of Science and Technology Will Definitely Make Humans Extinct Soon
The World Is Totally Crazy