'I feel fine,' lied Yang Liwei , eyes closed and arms drifting weightlessly.
It was 9.31am on October 15, 2003. Yang had just become China's first astronaut, and ground control was asking him how he felt.
His positive response brought enormous joy and relief to hundreds of millions of people holding their breath in front of television sets around the country.
'I actually felt wretched,' Yang admitted recently in his best-selling autobiography, The Long March to Space. 'The fact is, I was suffering something called inversion illusion and summoning all my willpower and strength to fight against it ... no one had ever mentioned it to me during training. The experience was very terrible.'
Similar torturous moments occurred throughout the mission, but Yang almost always chose to keep the pain and worry to himself, beaming mostly good news to the ground. By Western standards, he was telling bare-faced lies, but on the mainland almost everyone thinks he did exactly the right thing.
Zhang Hesheng , a professor at Beijing Normal University's College of Chinese Language and Culture, said Yang's remarks were white lies that harmed no one and were intended to benefit the hearer.