And these great natural rights may be reduced to three principal or primary articles: the right of personal security; the right of personal liberty; and the right of private property; because as there is no other known method of compulsion, or of abridging man's natural free will, but by an infringement or diminution of one or other of these important rights, the preservation of these, inviolate, may justly be said to include the preservation of our civil immunities in their largest and most extensive sense.
William Blackstone[Self-defense is] justly called the primary law of nature, so it is not, neither can it be in fact, taken away by the laws of society.
William BlackstoneThe sciences are of a sociable disposition, and flourish best in the neighborhood of each other; nor is there any branch of learning but may be helped and improved by assistance drawn from other arts.
William Blackstone