Jean-Eric Vergne says he is not approaching this weekend's Monaco Grand Prix with an overconfident demeanour, despite a couple of strong showings at the circuit.
Vergne ran in the top 10 in 2012 until a late tyre gamble failed to pay off, while last year he raced to a fine eighth place.
But the French driver does not believe that he can rely on his previous performances.
"I have raced there twice in Formula One and both times I performed well," he said. "I think it is one of the hardest races and you should always arrive there in a humble state of mind and never expect anything just because things went well the previous year.
"I am not going there being overconfident. You have to work hard all weekend and not make any mistakes and it requires far higher levels of concentration from the beginning to the end of the weekend. We will certainly be busy in the cockpit this year, but by now we are used to all the new jobs we have to do in the car.
"I enjoy the weekend a lot, with everything that goes on, even if, as a driver, I live in a bubble over the weekend, not going to the Casino or eating out in restaurants. But it’s great fun to be racing in a place like this."
Toro Rosso team-mate Daniil Kvyat faces an uphill challenge, having never even raced at any street circuit - let alone Monaco.
"Monaco for me will be an absolutely new experience," he said. "Not only have I never raced there, I have never even been there on a visit. Of course, I have watched a lot of races from Monaco on TV and a lot of on-board footage.
"But it will really be a step into the unknown for me, even if I have now driven it on the simulator. In fact, I have never raced on any street circuit."