Formal Proofs

Famous quotes containing the words formal and/or proofs:

“On every formal visit a child ought to be of the party, by way of provision for discourse.”
—Jane Austen (1775–1817)

“To invent without scruple a new principle to every new phenomenon, instead of adapting it to the old; to overload our hypothesis with a variety of this kind, are certain proofs that none of these principles is the just one, and that we only desire, by a number of falsehoods, to cover our ignorance of the truth.”
—David Hume (1711–1776)