I don't mind being criticised, because I am not that easy to knock down, and no-one can destroy me. But I am bothered by the stupid people who call me dirty, brainless, and an idiot. You don't say words like these to someone who you know nothing about.
I'm looking forward to the new adventure. Playing in the Premier League was always my dream, and I'm definitely going to relish this opportunity and give my absolute everything for this club.
I wouldn't change myself for anybody. I am who I am; people accept me, or they don't. I have my strengths and my weaknesses, which I can try to improve upon, of course. I'm still not the finished product.
You always need a certain amount of time to fully adjust; it was no different when I moved to the Bundesliga.
It's difficult to say no when Manchester City want you and you could play there. That much I have to admit.
You can't afford to rest on your laurels at all, or you'll instantly be on the bench.
What happens here, the daily agenda of Arsenal, is very different from what I experienced in Monchengladbach.
I like to play football. I'm an aggressive player and also a leader.
My game is about being aggressive, and I'm not the same player if you take that away from me.
It's aggressive, and I like the way Arsenal play football. It's not like other countries, but it's very, very nice here.
I guess I'd say I'm quite an aggressive player. Fair but aggressive, someone who likes the tough stuff.
I have never had any contact with Bayern Munich, let alone have agreed personal terms.
I still want to improve in every way. I'm a young player. I want to work, and that's my aim: to improve in every single aspect of my play.
No, Borussia is not falling apart. It does not matter whichever players will leave. That is what the past has showed. The club has developed and actually improved despite big-name players leaving.
One of the most revealing details about my parents is that they only got together three months before my dad's arrest.
Arsenal were really interested in me for a long time, and I think that I fit into the football Arsenal play.
When I went to Gladbach from Basel in 2012, I put a lot of pressure on myself at first, and it was too heavy. I will not put any pressure on myself at Arsenal, even though the transfer fee was high.
The fans are amazing. I'm really happy here at Arsenal, and I'm going to do my best for this club.