Same-sex marriage and the Irish language will dominate talks in Northern Ireland today.
The talks are aimed at breaking the political stalemate which has led to the ongoing suspension of power-sharing.
The negotiations between the North's main political parties - facilitated by the British and Irish governments - resume in Belfast later.
It has been more than two years since the collapse of the Stormont executive amid a scandal over a botched renewable heating initiative.
The latest round of talks got underway last week, after Leo Varadkar and Theresa May agreed to begin a new process in the wake of the killing of journalist Lyra McKee.
Tánaiste Simon Coveney said the start of talks were "constructive and positive".
Talks to restore the institutions have previously broken down over issues such as the Irish language and marriage equality.
Sinn Féin President Mary Lou McDonald today argued that it's not helpful to describe such issues as red lines for her party - suggesting they are instead "collective challenges".
Speaking on The Pat Kenny Show, Deputy McDonald observed: "I think it is fair to say that parties are all fully engaged.
"The things that we need to straighten out and that we need to deliver on are things that are collective ambitions for Northern society."
She argued that marriage equality and language rights are things people across Northern Ireland society "care deeply about".
The Sinn Féin leader noted: "I think it is something of a stereotype to assume that it is only báinín sweater-wearing Sinn Féin members who care about Irish."
Separately, Deputy McDonald said she "absolutely accepts" suggestions that the Conservatives in the UK don't care about Northern Ireland.
She argued: "[Theresa] May talks very regularly about what she calls the precious union.
"But you'd have to wonder what real value is placed on that union when you see the absolute disregard with which Ireland as a whole but the North of Ireland in particular was treated: not just during the Brexit campaign and referendum campaign, but thereafter.
"It's only when the border on the island really has become the stumbling block - and... a red-line for Europe as well as Ireland - that the Tories woke up and took notice."