"Who gives a damn if you refuse to buy Iran's oil for the next 70 years," Ahmadinejad said, addressing a large gathering of Iranian people in the Northern city of Sari on Wednesday.
He underlined the Iranian nation's capability of being self-sufficient, and said, "Dear Iran is one of the well known countries in the fields of nuclear energy, nanotechnology, biotechnology, pharmaceutical production and different industries" and it can use them instead of oil to increase its revenues.
Iran has managed to make considerable achievements in different scientific and technological spheres in recent years, although it is under several sets of the UN Security Council and western sanctions.
In similar remarks in March, Iranian Foreign Minister Ali Akbar Salehi said the western countries will achieve nothing by imposing sanctions against Iran.
"The foreigners also understand that they will get nowhere by imposing more pressure," Salehi said.
Washington and its Western allies accuse Iran of trying to develop nuclear weapons under the cover of a civilian nuclear program, while they have never presented any corroborative evidence to substantiate their allegations. Iran denies the charges and insists that its nuclear program is for peaceful purposes only.
Tehran stresses that the country has always pursued a civilian path to provide power to the growing number of Iranian population, whose fossil fuel would eventually run dry.
Despite the rules enshrined in the Non-Proliferation Treaty (NPT) entitling every member state, including Iran, to the right of uranium enrichment, Tehran is now under four rounds of UN Security Council sanctions and the western embargos for turning down West's calls to give up its right of uranium enrichment.
Tehran has dismissed West's demands as politically tainted and illogical, stressing that sanctions and pressures merely consolidate Iranians' national resolve to continue the path.
Tehran has repeatedly said that it considers its nuclear case closed as it has come clean of International Atomic Energy Agency (IAEA)'s questions and suspicions about its past nuclear activities.
