Are there Martians out there? I haven't got a clue. Is there life out there? I have no idea.

I think what I've actually achieved as a manager does sometimes get a bit overlooked, because all people think about is the media side of things. They tend to forget I've not done so bad.

I've been in football a long time and people have problems through debt, drugs, drink and family.

It took me 35 years of being involved at a decent level of football to become manager at a great club like Celtic.

If you keep asking me questions, I will continue to find excuses.

I did think there were one or two referees who had a personal thing against me. It wasn't them versus Celtic - it was them against me! I just think they wanted to take me on.

Everybody at Barcelona loves Messi. They can't speak highly of him.