- Infinity (en.wikiquote.org)
Infinity (symbolzed: ∞) is a term derived from the Latin infinitas or “unboundedness” denoting concepts involving limitless quantity, numeration, extension or expansion. In mathematics, “infinity” is often treated as if it were a number (i.e., it counts or measures things: “an infinite number of terms”) but it is not the same sort of number as the real numbers. In number systems incorporating infinitesimals, the reciprocal of an infinitesimal is an infinite number, i.e. a number greater than any real number. Georg Cantor formalized many ideas related to infinity and infinite sets during the late 19th and early 20th centuries. In the theory he developed, there are infinite sets of different sizes (called cardinalities). For example, the set of integers is countably infinite, while the set of real numbers is uncountably infinite.
- Alexander Lebedev (Wikipedia)
Alexander Yevgenievich Lebedev (Russian: Александр Евгеньевич Лебедев, IPA: [ɐlʲɪˈksandr jɪvˈɡʲenʲjɪvʲɪtɕ ˈlʲebʲɪdʲɪf]; born 16 December 1959) is a Russian businessman, and has been referred to as one of the Russian oligarchs. Until 1992, he was an officer in the First Chief Directorate (Foreign Intelligence) of the Soviet Union′s KGB and later one of the KGB’s successor-agencies, Russia’s Foreign Intelligence Service (SVR).