"What is terrorism. What is the definition of terrorism. Terrorism has no respect for religion, border or nationalities. It believes in only one thing and that is wanton destruction. Today terrorism is a serious challenge for international community," Mukherjee said at Uppsala University here.
The President said that enduring peace can only be established on the basis of humanity's moral and intellectual solidarity as political and economic agreements will not on their own build a lasting peace.
The President said if Tagore was the intellectual and spiritual torch bearer of global peace, it was the Mahatma or the great soul who showed the world that Satyagraha or truth force and Ahimsa or non-violence can be marshalled to create a more just world.
"I have no hesitation in stating that the ideas of truth, openness, dialogue and non-violence espoused by Tagore and Gandhiji provide the best way forward for a world confronted with intolerance, bigotry and terrorism," he said.
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"These ideals therefore need to be propagated far and wide, especially amongst the youth," he said.
The President said that in Tagore's view, war was a consequence of aggressive western materialism that developed in the early part of the 20th century, with science divorced from spirituality.
"According to the poet, the East and the West must meet on a common ground and on terms of equal fellowship: where knowledge flows in two streams -- from the East and from the West and in their unity is perceived the oneness of truth that pervades and sustains the entire universe. As he put it pithily: It was Buddha who conquered the world, not Alexander," Mukherjee said.
He said the simultaneous presence of Tagore and Mahatma Gandhi is a unique blessing that modern India received and we believe that this good fortune places upon us a special responsibility to involve ourselves actively in the promotion of dialogue amongst different religions, faiths, cultures and civilisations.