Mark Daly: Challenges ahead for those who seek a united Ireland free from any borders
TK Whitaker was voted 'Irish Man of the 20th Century'. He wrote the policy that was followed by successive governments that laid the economic foundations of the modern Irish State.
If Whitaker's advice - on November 11, 1968, and the eve of the Troubles - had been adhered to by all those who wish to see a united Ireland, we could have had a different past.
We must look at Whitaker's advice anew and pay attention to it, to ensure a better future for all the people on this island.