Portugal's 2-1 win over Mexico on Wednesday earned Luiz Felipe Scolari a World Cup record of 10 successive victories as a coach.
"Ten wins in the World Cup is the kind of thing that would mark anybody's life, especially mine," Scolari told reporters after Portugal ended their Group D campaign with three victories from three matches.
He said he liked Portugal's attitude against Mexico.
"It wasn't a game where everything was at its best but the way the team carried itself from beginning to end, I think it was good," said Scolari.
The Brazilian refused to say whether he would prefer to play Netherlands or Argentina, who meet in Group C later on Wednesday, in the second round.
"It's not up to us to pick, it's they who will choose," said Scolari.
"When it's the World Cup, you cannot choose. It's best that we do our job from day to day and we try to get another win."
Mexico coach Ricardo La Volpe said his team did not convert enough of their goal chances.
"I believe our main problem is scoring," said La Volpe. "We had a penalty and didn't get it in. We have the forwards we need, we get to the opposing goalkeeper but we must put away our chances."
Mexico, who went down to 10 men in the 61st minute when Luis Perez was sent off, had thrown away the chance of an equaliser four minutes earlier as Omar Bravo blasted a penalty into the crowd.
La Volpe, however, was satisfied with Mexico's all-round performance.
"We played well," he said. "I think we are playing the ball around better than our rivals.
"Today we didn't score enough. For the coach that is the most difficult thing to resolve."
Mexico captain Rafael Marquez agreed with his coach.
"We had so many chances we could not put away," said Marquez. "Unfortunately we lost but because of our superior points we go through (to the last 16).
"We are missing a bit of luck because we continue to make lots of chances. The penalty miss?...let's not talk about that. We have to try to work on scoring goals."