"I can only look at his actions", said Harrington, who succeeds Thomas Bjorn as captain.
Padraig Harrington will lead Europe into the next Ryder Cup.
"Obviously I'm thrilled to be named as the captain for 2020", Harrington said.
'It's not something I take on without a certain amount of trepidation.
So did he really want a job that will consume his life and effectively put his playing career on hold for the next two years?
"I have to be a part of that team and ensure I find an edge to ensure the team perform to their best".
The Dubliner will lead Europe against the US at Whistling Straits next year.
Steve Stricker is expected to be named the Captain for the 2020 United States of America side, and Harrington previously said thinks he will be a "nice" Captain, but says he is not to be underestimated.
"I think it will mean a lot, it's a great honour for him", two-time Ryder Cup player Des Smyth told RTÉ Sport.
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Or will they be condemned by many of us as gold-digging troublemakers trying to bring a successful brother down? She figured an adult would always be present, she said, but Kelly managed to spend alone time with the child.
With many of Europe's big names increasingly competing on the PGA Tour, Harrington could opt to have another qualifier from the World Points List, but keeping the same system is more likely.
The PGA of America might be tempted to go for someone with a winning pedigree as Ryder Cup captain, with Davis Love III and Paul Azinger top of a very short list!
He was the first American to top the official world golf rankings in 1992 and was a two-time victor of the Ryder Cup as a player; featuring as a vice-captain in the 2012 edition took his total involvements to six.
A year earlier, he recalled a moment during his debut at Brookline, reaching the par-three sixteenth in his singles match against Mark O'Meara when he recognised captain Mark James' discomfort at Harrington seeking his advice on what club to use. Stricker has also been a vice captain at the last three Ryder Cups.
"It's going to take a great deal of my time over the next two years to do it".
He said: "Steve's a solid bloke".
"And having been a vice-captain three times, I realise how much work is behind the scenes in being a captain". When you're a player, you are exclusively concerned with your ability to perform on the biggest stage of all and trying to get your game in optimum shape. He's a good guy, well respected, and he's already enjoyed success as a team captain in the Presidents Cup.
"It seems to be a natural progression and it feels like the right time in my career", Harrington was reported as saying by BBC Sport. He's tough but very straight.
"You don't get that day in, day out".
"He is as European as they come".