“Tolerance means showing respect for other people's history, traditions, religion and cultural identity. But let there be no misunderstanding: Tolerance does not mean "anything goes". There must be zero tolerance towards all those who show no respect for the inalienable rights of the individual and who violate human rights.”

Sucesivos Escolios a un Texto Implícito (1992)

As quoted in Global History, Volume Two : The Industrial Revolution to the Age of Globalization (2008) by Jerry Weiner, Mark Willner, George A. Hero and Bonnie-Anne Briggs, p. 175
Context: Mexicans: let us now pledge all our efforts to obtain and consolidate the benefits of peace. Under its auspices, the protection of the laws and of the authorities will be sufficient for all the inhabitants of the Republic. May the people and the government respect the rights of all. Between individuals, as between nations, peace means respect for the rights of others.

In response to an article in the TIMES, London, which had labelled Islam as an "intolerant" religion, and held it responsible for some of the problems of the Middle East.
Context: Even a little knowledge of Islam will show that its religion is not only tolerant of other Faiths, but most respectful, and indeed, fully accepts the divine inspiration of all theistic Faiths that came before Islam. It does not only teach tolerance to its followers, but goes a step further and enjoins on them all to create the godly quality of "Hilm" that is, tolerance, forbearance, patience, calmness, and forgiveness. It is due to the spirit of tolerance of Islam that even the smallest Christian and Jewish minorities survived and kept all their doctrines during the thousand years of Muslim rule. Nothing like what happened to Muslims in Spain after the Christian conquest has ever happened to a non-Muslim Faith in any Islamic dominion. How, can Europeans be so ignorant as to have forgotten that in the first century of Islam the Khalifs ordered that all that was best in Greek and Roman cultures should be assimilated; that not only the philosophy, medicine and science of Greece, but its poetry and drama, were carefully translated into Arabic and were generally sought not only by the learned but also by the pious! The Muslim attitude towards the absorption of ideas was based on the principle of Islam which enjoins to acquire knowledge wherever available, and there is a well-known and authentic saying of the Prophet that "his followers should seek learning even if they have to go to China."

An Essay on Liberation Beacon Press, 1969, p. 109 http://www.marcuse.org/herbert/pubs/60spubs/65repressivetolerance.htm
An Essay on Liberation (1969)

Source: Life Itself : A Memoir (2011), Ch. 55 : Go Gently
Context: Raised as a Roman Catholic, I internalized the social values of that faith and still hold most of them, even though its theology no longer persuades me. I have no quarrel with what anyone else subscribes to; everyone deals with these things in his own way, and I have no truths to impart. All I require of a religion is that it be tolerant of those who do not agree with it. I know a priest whose eyes twinkle when he says, “You go about God’s work in your way, and I’ll go about it in His.”

Vol. 1, Notes to the Chapters: Ch. 7, Note 4
The Open Society and Its Enemies (1945)
Context: The so-called paradox of freedom is the argument that freedom in the sense of absence of any constraining control must lead to very great restraint, since it makes the bully free to enslave the meek. The idea is, in a slightly different form, and with very different tendency, clearly expressed in Plato.
Less well known is the paradox of tolerance: Unlimited tolerance must lead to the disappearance of tolerance. If we extend unlimited tolerance even to those who are intolerant, if we are not prepared to defend a tolerant society against the onslaught of the intolerant, then the tolerant will be destroyed, and tolerance with them. — In this formulation, I do not imply, for instance, that we should always suppress the utterance of intolerant philosophies; as long as we can counter them by rational argument and keep them in check by public opinion, suppression would certainly be unwise. But we should claim the right to suppress them if necessary even by force; for it may easily turn out that they are not prepared to meet us on the level of rational argument, but begin by denouncing all argument; they may forbid their followers to listen to rational argument, because it is deceptive, and teach them to answer arguments by the use of their fists or pistols. We should therefore claim, in the name of tolerance, the right not to tolerate the intolerant. We should claim that any movement preaching intolerance places itself outside the law, and we should consider incitement to intolerance and persecution as criminal, in the same way as we should consider incitement to murder, or to kidnapping, or to the revival of the slave trade, as criminal.

Audio lectures, Hybridization and the Law (n. d.)

Speech to Conservative Party Conference (9 October 1987) http://www.margaretthatcher.org/speeches/displaydocument.asp?docid=106941
Third term as Prime Minister

Remarks to the Parliamentary Assembly of the Council of Europe (2005)
Source: As quoted in "Remarks of the President of Georgia H.E. Mikheil Saakashvili to the Parliamentary Assembly of the Council of Europe" https://reliefweb.int/report/georgia/remarks-president-georgia-he-mikheil-saakashvili-parliamentary-assembly-council (26 January 2005), ReliefWeb