The Gunners have become bookies' favourites following their 2-1 win over Manchester City on Monday, but the Frenchman has urged caution as the North Londoners chase a first league title since 2004.
"We played well with great solidarity and I'm pleased for everyone, the players and the fans, and it was an early Christmas present," he said.
"We are very far from winning the title because it's not a sprint, it's a marathon.
"We're doing well at the moment and the communication on the pitch, the team spirit and the football is amazing.
"We enjoyed it because there was a lot of emotion on the pitch, off the pitch and we were victorious so I am so pleased for everyone."