Arsenal boss Arsene Wenger admits managing pressure can be testing, but insists he remains as hungry as ever to succeed.
The Frenchman will celebrate 17 years in charge of the Gunners this weekend - during which time he has delivered seven major trophies, including three top flight titles, graced a UEFA Champions League final and gone an entire Premier League season undefeated.
While there have been some considerable highs, there have also been plenty of lows - with criticism having mounted over recent years regarding a supposed lack of ambition in the transfer market.
Wenger has, however, kept Arsenal competitive and boasts a perfect record when it comes to qualification for the Champions League.
He concedes that the stresses and strains of life in the hottest of managerial hot-seats can take its toll, but the 63-year-old has no intention of turning his back on coaching any time soon.
Wenger said in a new book 'The Manager: Inside the Minds of Football's Leaders': "The biggest pressure you have is to drive home on a Saturday night having lost a game and to think that some people will cry because you lost that game.
"That is the biggest pressure, to let people down. That's a big responsibility and I feel the longer you stay at a club, unfortunately, the bigger the responsibility becomes.
"What keeps me going is my love for the game, for doing the job I do. I have that desire to be as good as I can be, refusing to be average.
"Unfortunately, sometimes in the job I feel very average when I don't deliver results but there is something in every individual that pushes him to try and be excellent. That is my petrol."
While aware of the need to satisfy a demanding fan base, Wenger also concedes that keeping a squad of highly-paid professional footballers happy provides its own challenges.
He added: "One of the difficult things of being a manager is to sack 14 people every Friday morning and then re-employ them on a Monday morning and say, 'Right, we start again - I take you back on board'.
"When you have 25 players and on a Friday you filter them out, you turn those people into the unemployed and their sense of belonging diminishes.
"Somebody who doesn't play or who is injured feels useless - he feels in danger.
"Therefore it is important the club shows respect to players who are not in situations where they can show how good they are."
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