israeli dixiecrats getting heated over high-minded scrutiny of their ways...,

guardian | The celebrated physicist Stephen Hawking became embroiled in a deepening furore today over his decision to boycott a prestigious conference in Israel in protest over the state's occupation of Palestine.

Hawking, a world-renowned scientist and bestselling author who has had motor neurone disease for 50 years, cancelled his appearance at the high-profile Presidential Conference, which is personally sponsored by Israel's president, Shimon Peres, after a barrage of appeals from Palestinian academics.

The move, denounced by prominent Israelis and welcomed by pro-Palestinian campaigners, entangled Cambridge University – Hawking's academic base since 1975 – which initially claimed the scientist's withdrawal was on medical grounds, before conceding a political motivation.

The university's volte-face came after the Guardian presented it with the text of a letter sent from Hawking to the organisers of the high-profile conference in Jerusalem, clearly stating that he was withdrawing from the conference in order to respect the call for a boycott by Palestinian academics.

The full text of the letter, dated 3 May, said: "I accepted the invitation to the Presidential Conference with the intention that this would not only allow me to express my opinion on the prospects for a peace settlement but also because it would allow me to lecture on the West Bank. However, I have received a number of emails from Palestinian academics. They are unanimous that I should respect the boycott. In view of this, I must withdraw from the conference. Had I attended, I would have stated my opinion that the policy of the present Israeli government is likely to lead to disaster."

Hawking's decision to throw his weight behind the academic boycott of Israel met with an angry response from the organisers of the Presidential Conference, an annual event hosted by Israeli president Shimon Peres.

"The academic boycott against Israel is in our view outrageous and improper, certainly for someone for whom the spirit of liberty lies at the basis of his human and academic mission," said conference chairman Israel Maimon. "Israel is a democracy in which all individuals are free to express their opinions, whatever they may be. The imposition of a boycott is incompatible with open, democratic dialogue."

Daniel Taub, the Israeli ambassador to London, said: "It is a great shame that Professor Hawking has withdrawn from the president's conference … Rather than caving into pressure from political extremists, active participation in such events is a far more constructive way to promote progress and peace."

The Wolf Foundation, which awarded Hawking the Wolf prize in physics in 1988, said it was "sad to learn that someone of Professor Hawking's standing chose to capitulate to irrelevant pressures and will refrain from visiting Israel".

But Palestinians welcomed Hawking's decision. "Palestinians deeply appreciate Stephen Hawking's support for an academic boycott of Israel," said Omar Barghouti, a founding member of the Boycott, Divestment and Sanctions movement. "We think this will rekindle the kind of interest among international academics in academic boycotts that was present in the struggle against apartheid in South Africa."