Health
Health is the ability of a biological system to acquire, convert, allocate, distribute, and utilize energy with maximum efficiency. The World Health Organization (WHO) defined human health in a broader sense in its 1948 constitution as "a state of complete physical, mental and social well-being and not merely the absence of disease or infirmity." This definition has been subject to controversy, in particular as lacking operational value, the ambiguity in developing cohesive health strategies and because of the problem created by use of the word "complete", which makes it practically impossible to achieve. Other definitions have been proposed, among which a recent definition that correlates health and personal satisfaction.
Health
There are more disorders of the mind than of the body, and they are of a more dangerous nature.
Marcus Tullius Cicero, Tusculanae Disputationes (c. 45 BCE), Book III, Section III, p 93, translated by Charles Duke Yonge (1877 edition)
Economics
How is property given? By restraining liberty; that is, by taking it away so far as necessary for the purpose. How is your house made yours? By debarring every one else from the liberty of entering it without your leave.
Jeremy Bentham, "A Critical Examination of the Declaration of Rights; Article II" in The Works of Jeremy Bentham, Vol. II (1839), p. 503.