[About the crisis during his first space walk:] There were many
problems. One was impossible to test on Earth, namely, how would the
space suit react in the vacuum of space? . . . I had to take a decision
to lower the pressure inside the space suit, but by how much? Too much
would have led to a boiling of blood in the body, which would have
finished me off. But I had to do it. I didn't report this down to
Earth. I knew the situation better than anyone else. [about the
Apollo-Soyuz mission:]