“I deny that villany is ever necessary. It is impossible that it should ever be necessary for any reasonable creature to violate all the laws of justice, mercy, and truth. No circumstances can make it necessary for a man to burst in sunder all the ties of humanity.”

Source: A Theory of Justice (1971; 1975; 1999), Chapter III, Section 22, pg. 126

Speech at Founding Rally of the Organization of Afro-American Unity (28 June 1964) http://www.blackpast.org/?q=1964-malcolm-x-s-speech-founding-rally-organization-afro-american-unity
Variant: We declare our right on this earth to be a human being, to be respected as a human being, to be given the rights of a human being in this society, on this earth, in this day, which we intend to bring into existence by any means necessary.
As quoted in By Any Means Necessary (1970)
By any means necessary: speeches, interviews, and a letter (1970)
Context: We have formed an organization known as the Organization of Afro-American Unity which has the same aim and objective to fight whoever gets in our way, to bring about the complete independence of people of African descent here in the Western Hemisphere, and first here in the United States, and bring about the freedom of these people by any means necessary.
That's our motto. We want freedom by any means necessary. We want justice by any means necessary. We want equality by any means necessary.

Il y a aussi deux sortes de vérités, celles de Raisonnement et celle de Fait. Les vérités de Raisonnement sont nécessaires et leur opposé est impossible, et celles de Fait sont contingentes et leur opposé est possible.
La monadologie (33).
The Monadology (1714)

Fatawa-i-Jahandari, p.64. quoted from Lal, K. S. (1992). The legacy of Muslim rule in India. New Delhi: Aditya Prakashan. Chapter 4
Fatawa-i-Jahandari

The Children of Light and the Children of Darkness (1944)
Source: The Essential Reinhold Niebuhr: Selected Essays and Addresses

No. 96 (16 February 1751)
Source: The Rambler (1750–1752)

Address to the Society for Psychical Research (1897)
Context: These rays, as generated in the vacuum tube, are not homogeneous, but consist of bundles of different wave-lengths, analogous to what would be differences of colour could we see them as light. Some pass easily through flesh, but are partially arrested by bone, while others pass with almost equal facility through bone and flesh.
It seems to me that in these rays we may have a possible mode of transmitting intelligence which, with a few reasonable postulates, may supply a key to much that is obscure in psychical research. Let it be assumed that these rays, or rays even of higher frequency, can pass into the brain and act on some nervous center there. Let it be conceived that the brain contains a center which uses these rays as the vocal chords use sound vibrations (both being under the command of intelligence), and sends them out, with the velocity of light, to impinge on the receiving ganglion of another brain. In this way some, at least, of the phenomena of telepathy, and the transmission of intelligence from one sensitive to another through long distances, seem to come into the domain of law and can be grasped. A sensitive may be one who possesses the telepathic transmitting or receiving ganglion in an advanced state of development, or who, by constant practice, is rendered more sensitive to these high-frequency waves. Experience seems to show that the receiving and the transmitting ganglions are not equally developed; one may be active, while the other, like the pineal eye in man, may be only vestigial. By such an hypothesis no physical laws are violated; neither is it necessary to invoke what is commonly called the supernatural.

Source: Critique of Pure Reason (1781; 1787)

Creation seminars (2003-2005), The dangers of evolution