I feel bad that I'm the one always blamed for the failure of the space business - even though there are problems with government policy toward the space business.

I will do my best to support science in Korea and space programs in Korea.

Only in space did I realize how lucky I am to be Korean. Only in Korea could I have gone to space before turning 30 years old.

I felt so free in space, flying around and unrestrained by any social relationships, but my life since has changed a lot. Now I am extra-careful about what I say and do because everyone recognises me.

If you ask me what's harder, being famous or flying to space, I'd say fame is much harder.

On Earth, men are seen as superior because of their physical strength, but it means nothing in space, where there is no gravity.