The veteran manager wants his side to be consistent as they look to secure Champions League football once again.
The Gunners are currently on an encouraging run of form, having beaten Manchester City 2-0 at the Etihad and then followed that up with a 3-2 win over Brighton to secure their passage into the FA Cup fifth round.
And Wenger, whose Arsenal side can move above local rivals Tottenham Hotspur if they beat Aston Villa on Sunday, insists his team must maintain their focus and commitment in order to be successful and finish in the top four once again.
"We want complete focus and commitment to be completely concentrated on what we want to achieve,” said Wenger.
“We have to be very cautious with the mood in our job because the swings are very quick. You need a good balance between an optimistic mood and urgency as well.”
Aston Villa are currently the lowest scorers in the Premier League with just 11 goals from 22 matches - but Wenger insists his side cannot afford to become complacent when the two clubs meet this weekend.
Paul Lambert’s men managed to find their scoring boots against Championship leaders Bournemouth in the FA Cup last weekend, with a special goal from new signing Carles Gil standing out in the memory.
Wenger, though, says Aston Villa’s attacking players - the likes of Gabriel Agbonlahor, Christian Benteke and Andreas Weimann - are all capable of finding the net.
"There is a distortion between the quality Villa have going forward [and their goal record]," the Gunners boss said.
“When you look at the names they have on their team sheet, they have Benteke, Agbonlahor and Weimann, who can all score goals. They suffered a lot from Agbonlahor's injury after Benteke was out for a long time. But when everybody's there, it is a team who look quite dangerous going forward."