The gap at the top of the Drivers' Championship now stands at 40 points - the largest it's been all season by quite some margin. But, with six races left to go, Lewis knows how fragile that lead could still be and won't be backing off even for a moment.
"There are still a lot of points available," he concluded.
"As an athlete, as a team and as competitors, you have to stay positive. Hope and belief are the two things you always have to make sure that you have.
"I can assure you, we as a team we are not getting cocky or overly confident. We are diligent and working as hard as we can. We want to just keep plugging away.
"I don't look at it and think that we lucked in. We honestly don't waste any time wondering what they [Ferrari] are doing or how they are feeling or if they are feeling pressure if they are happy or unhappy.
"There is nothing we can do about them. All we can do is be the best we can be that weekend and hopefully that is good enough. If it's not then we will keep working.
"In my mind I need to win every race. It's as simple as that. There will be weekends where we know we will be stronger and weekends like this one where we knew that we would be behind - but we still have to believe that we can win.
"I didn't think that I would have 40 points [advantage] at this point. Of course, it's nice having that - but I's not the end until it's mathematically impossible. I will keep fighting."