'I see a bright horizon in the future of Iran's economy and I believe that Iran could open a new chapter in international relations which is deserved by the Iranian nation and the country's history,' Khoshrou said.
Iran and the six world powers struck a deal in Vienna on Tuesday.
The hitherto elusive agreement was finally nailed down on Tuesday in the ritzy Palais Coburg Hotel in the Austrian capital of Vienna, where negotiators from Iran and the six other countries had recently been spending over two weeks to work out the remaining technical and political issues.
The agreement, the Joint Comprehensive Plan of Action (JCPOA), will be presented to the United Nations Security Council (UNSC), which will adopt a resolution in seven to 10 days making the JCPOA an official document.
Meantime, Iran and the IAEA also signed a roadmap of cooperation on Tuesday. The roadmap was signed by Director General of the International Atomic Energy Agency Yukiya Amano and President of the Atomic Energy Organization of Iran Ali Akbar Salehi.
Amano said the roadmap calls for his agency, with Iran's cooperation, to make an assessment of issues relating to what is called as possible military dimensions of the Islamic Republic's nuclear program by the end of 2015.
'This is a significant step forward toward clarifying outstanding issues regarding Iran's nuclear program,' Amano said.
Addressing the Iranian people after his Foreign Minister Mohammad Javad Zarif and EU Foreign Policy Chief Federica Mogherini declared the nuclear agreement, Iran's President Hassan Rouhani also said his country has achieved all its four goals.
President Rouhani said his nation started talks with the world powers in a bid to remove all sanctions while maintaining its nuclear program and nuclear progress as two main goals.
All sanctions, including the financial, banking, energy, insurance, transportation, precious metals and even arms and proliferation sanctions will be, not suspended, but terminated according to the Tuesday agreement as soon as the deal comes into force, he said, adding that Iran will only be placed under certain limited arms deal restrictions for five years.
Meantime, Iran will inject gas into its highly advanced IR8 centrifuge machines, continue its nuclear research and development, and keep its Arak Heavy Water Facility and Fordo and Natanz enrichment plants under the agreement, he said, elaborating on Iran's gains.
Another goal, Rouhani said, was taking Iran off Chapter Seven of the UN Charter, 'and we did it'.
Yet, he said Iran will scrutinize implementation of the agreement to see if the opposite side would comply with its terms.
He stressed that certain powers have left a dark record in complying with their undertakings under previous agreements, and Iran will keep a watchful eye on powers' compliance with the agreement.
Rouhani underlined that Iran will remain fully loyal to the terms of the agreement as long as powers comply with their undertakings.
Yet, he said the agreement will come into full force after several phases. 'Today was phase one. The second step will be approval of the agreement in a UN Security Council resolution.'
'And phase three will be two months after the UNSC resolution,' the president said, adding that the agreement will go into effect after phase three when Iran and the powers declare their preparedness to start action.
Yet, Rouhani said 'today was the most important phase.'
He said the agreement came despite the Israeli regime's powerful opposition, adding that Tel Aviv's steadfast antagonism proved futile.
Rouhani said the regional nations are happy today to see the agreement has been struck between Iran and the 6 world powers.
He cautioned 'certain parties to the nuclear talks to avoid claims that the agreement prevents Iran from developing nuclear bombs, because every one in the world knows that our Supreme Leader (Ayatollah Seyed Ali Khamenei) has placed a religious ban on the development, use or acquisition of military nuclear technology and Iran has never been after atomic bombs.'
President Rouhani thanked the Iranian team of negotiators for their industrious efforts as well as the Leader for his guidelines and support, and the Iranian nation for their years of resistance against illegitimate pressures.
Meantime, the President welcomed domestic critics to present their assessments and proposals on the agreement.
Rouhani also cautioned the regional nations to take good care not to be deceived by enemies, stressing that Iran is only after peace and security in the region.