David Mackay Quotes: By my mid-30s, I just thought, 'This is not going to happen. I am never going to become an astronaut ...

By my mid-30s, I just thought, 'This is not going to happen. I am never going to become an astronaut in the U.K.' (David Mackay)

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David Mackay Quotes: By my mid-30s, I just thought, 'This is not going to happen. I am never going to become an astronaut in the U.K.'

David Mackay Quotes: By my mid-30s, I just thought, 'This is not going to happen. I am never going to become an astronaut in the U.K.'

David Mackay Quotes: By my mid-30s, I just thought, 'This is not going to happen. I am never going to become an astronaut in the U.K.'

David Mackay Quotes: By my mid-30s, I just thought, 'This is not going to happen. I am never going to become an astronaut in the U.K.'

David Mackay Quotes: By my mid-30s, I just thought, 'This is not going to happen. I am never going to become an astronaut in the U.K.'

David Mackay Quotes: By my mid-30s, I just thought, 'This is not going to happen. I am never going to become an astronaut in the U.K.'

David Mackay Quotes: By my mid-30s, I just thought, 'This is not going to happen. I am never going to become an astronaut in the U.K.'

David Mackay Quotes: By my mid-30s, I just thought, 'This is not going to happen. I am never going to become an astronaut in the U.K.'

David Mackay Quotes: By my mid-30s, I just thought, 'This is not going to happen. I am never going to become an astronaut in the U.K.'

David Mackay Quotes: By my mid-30s, I just thought, 'This is not going to happen. I am never going to become an astronaut in the U.K.'

David Mackay Quotes: By my mid-30s, I just thought, 'This is not going to happen. I am never going to become an astronaut in the U.K.'

David Mackay Quotes: By my mid-30s, I just thought, 'This is not going to happen. I am never going to become an astronaut in the U.K.'

David Mackay Quotes: By my mid-30s, I just thought, 'This is not going to happen. I am never going to become an astronaut in the U.K.'

David Mackay Quotes: By my mid-30s, I just thought, 'This is not going to happen. I am never going to become an astronaut in the U.K.'

David Mackay Quotes: By my mid-30s, I just thought, 'This is not going to happen. I am never going to become an astronaut in the U.K.'