Schwarz rose from the childhood poverty he experienced as a German-Jewish refugee to become a lawyer and a member of the Transvaal Provincial Council, where from 1963 to 1974, he was Leader of the Opposition.
He pioneered the call in white politics for a negotiated end to apartheid and in 1974 signed the Mahlabatini Declaration of Faith with Mangosuthu Buthelezi for a non-racial democratic society in South Africa.
Described as South Africa's "most feisty politician" and a political "maverick",[5] he was known for his parliamentary clashes with the apartheid government over its racial and economic policies.
"[10] The discrimination and financial difficulties of his family left a strong impression on Schwarz and helped shape his political philosophy with its emphasis on social justice and the rule of law.
After being the subject of vicious taunting and many attempts to place him as a vital cog of MK by Percy Yutar, finally Judge Quartus de Wet discharged him, stating Accused No 8 has no case to answer.
'"[11] Harry Schwarz's political career started with his election to the Johannesburg City Council in 1951 for Booysens, which had been said to be an unwinnable seat against the National Party.
While in the council, Schwarz focused on challenging forced evictions of black and coloured people in Johannesburg, and attempted to improve housing and education.
Schwarz's vision for the post-apartheid South Africa was embodied in a document named the "Act of Dedication", of which he presented to the provincial council in 1973.
Schwarz and his Young Turks faced fierce opposition and resistance from the party's national leader Sir De Villiers Graaff and other members of the UP's "Old Guard".
On 4 January 1974, Harry Schwarz met and had discussions with Gatsha (later Mangosuthu) Buthelezi, Chief Executive Councillor of the black homeland of KwaZulu.
The declaration was endorsed by several chief ministers of the black homelands, including Cedric Phatudi (Lebowa), Lucas Mangope (Bophuthatswana) and Hudson Nisanwisi (Gazankulu).
[16] On 11 February 1975, when asked in Parliament by a National Party MP if he supported Enthoven's liberal positions, Schwarz replied "I make no secret of it.
Schwarz also played a key role exposing the Muldergate Scandal of 1979, that led to the resignation of Prime Minister B. J. Vorster, acting as the PFP's representative to the investigation commission.
[27] Rejecting Schwarz's proposal, Daan van der Merwe of the Conservative Party stated that the bill, based on a "leftist-liberal political philosophy", would jeopardise the freedom of the white man.
Schwarz was an extremely able MP with a good financial brain, and a hard worker who could devastate National Party members in Parliament, especially Ministers of Finance, who feared his vigorous attacks.
[34] After his visit, Schwarz called for the "immediate and unconditional" release of Mandela, stating that this was "in the interest of all South Africans - black and white - that this should happen as soon as possible".
[35] Harry Schwarz was the first serving politician from the parliamentary opposition ranks to be appointed to a senior ambassadorial post in South African history as well as the first Jewish ambassador.
He agreed to the appointment of ambassador because of the government's commitment to the fundamental reforms that he had fought for, as well as on the terms that the National Party would not try to take his seat in Yeoville.
A comment in the Boston Herald, typified the reaction among much of the US press: "When a man who has devoted most of his life to the struggle for a new South Africa tells you that apartheid is dead and that sanctions are holding up its burial, he speaks with a moral authority that is difficult to assail.
"[36] The fact that Schwarz, a well known and respected anti-apartheid leader was willing to accept the post was widely acknowledged in South Africa as a further demonstration of President F. W de Klerk's determination to introduce a new democratic system.
[38] The fact that Schwarz, for decades a well known anti-apartheid figurehead, was willing to accept the position was widely acknowledged as a highly symbolic demonstration of President F. W de Klerk's determination to introduce a new democratic system.
While affirming that "the days of the Jews walking into the gas chambers are over", Schwarz also warned that the Jewish community should "not paint everybody with a broad brush", and that impulsive reactions should be avoided before "waging war".
[46] In relation to apartheid, Schwarz argued that Judaism was fundamentally opposed to segregation, and that "If we rationalise or condone discrimination against one group, we have compromised our principles and we are then not true to our beliefs or our history".
He was assured in private meetings by Israeli Prime Minister's Shimon Peres and Yitzhak Shamir that Jews in South Africa would not become isolated and links with Israel would be maintained.
Schwarz delivered his final public speech at the South African Parliament in November 2009 at a celebration of the fiftieth anniversary of the formation of the Progressive Party, in which he stated that "freedom is incomplete if it is exercised in poverty".
On the morning of 5 February 2010, the South African Jewish Board of Deputies announced that Schwarz had died, following a short illness, at the age of 85.
[52] He was buried on Sunday 7 February in the section of honor in the West Park Cemetery in Johannesburg; the funeral was attended by hundreds of guests and family members.
His piercing intellect, and long professional experience in banking, made him the most astute analyst in Parliament on economic and financial matters during his terms in office.
Zev Krengel, chairman of the South African Jewish Board of Deputies, said that "He was a man of formidable intellect and absolute integrity and was throughout his life a brave, unyielding fighter for justice."
Others such as former Leader of the Opposition Frederik van Zyl Slabbert, former Foreign Minister Pik Botha and the African Christian Democratic Party[55] paid tribute to Schwarz for his record as an anti-apartheid campaigner and for his contribution to democracy and human rights in South Africa.