Jurgen Klopp hailed Liverpool's determination after his team came back from a goal down to secure a vital 3-1 win away to Southampton on Friday.
The Reds fell behind to Shane Long's early opener at St Mary's Stadium, equalising courtesy of Naby Keita's 36th-minute header.
But it took until a blistering counterattack with 10 minutes remaining for the visitors to take the lead, Mohammed Salah carrying the ball from the half-way line before beating Angus Gunn to end his goal drought and reach 50 Premier League strikes for Liverpool in record time.
Jordan Henderson then added a third with four minutes to go, leaving Klopp's side in first place, two points clear of Manchester City.
"Mentality, huh? It's brilliant," he told a news conference.
"We come here and we know Southampton is a really different side since [manager] Ralph [Hasenhuttl] is in [charge] and we know it.
"Everybody expects [us to win] and we need three points and we know how difficult it is, and you saw it.
"And then we scored these two world-class goals, what can I say?
"Super goal from Mo [Salah], super run, Bobby [Roberto Firmino] is so important to make the run - he [almost] didn't play because the ankle was not good - fantastic finish. Then Bobby again chasing pretty much the whole world and makes a one-v-one situation, super pass, 3-1.
"It was, of course, close but that was clear from the first second, I would say. I think everybody who comes here in the future will feel that, it makes it even more satisfying and brilliant that we could win."
"YESSSSSSSSSSS, MO SALAH!!"
— Liverpool FC (@LFC) April 5, 2019
A sensational Match in a Minute after a breathtaking #SOULIV . pic.twitter.com/i0Ttuk8nAk
Salah had not found the back of the net in any competition for Liverpool since a 3-0 win over Bournemouth on February 10, and the Egyptian cut a defiant figure as he removed his shirt to celebrate in front of the jubilant away fans.
"It was never in doubt about [Salah] being a great player from my side," Klopp said.
"It was goal No. 50 for Liverpool [in the Premier League] – that's an incredible number. As a striker you have chances, each striker is a human being as well, maybe you have better moments and less good moments.
"But he is pretty consistent, his physical things are always there, but it's normal [to experience a dry spell]. He stayed always calm to deal with the situations around us. If it's a big thing [to others] we don't really care about it, but it's a nice moment for his first goal for a while, a really good moment."