Answer the question at the end by quoting:

Irving Fisher (February 27, 1867 - April 29, 1947) was an American economist, statistician, inventor, and Progressive social campaigner. He was one of the earliest American neoclassical economists, though his later work on debt deflation has been embraced by the Post-Keynesian school. Joseph Schumpeter described him as "the greatest economist the United States has ever produced", an assessment later repeated by James Tobin and Milton Friedman. Fisher made important contributions to utility theory and general equilibrium.
In 1898, Fisher was diagnosed with tuberculosis, the same disease that had killed his father. He spent three years in sanatoria, finally making a full recovery. That experience sparked in him a vocation as a health campaigner. He was one of the founders of the Life Extension Institute, under whose auspices he co-authored the bestselling book How to Live: Rules for Healthful Living Based on Modern Science, published in 1915. He advocated regular exercise and the avoidance of red meat, tobacco, and alcohol. In 1924, Fisher wrote an anti-smoking article for the Reader's Digest, which argued that "tobacco lowers the whole tone of the body and decreases its vital power and resistance ... [it] acts like a narcotic poison, like opium and like alcohol, though usually in a less degree". Fisher supported the legal prohibition of alcohol and wrote three booklets defending prohibition in the United States on grounds of public health and economic productivity. He also defended eugenics, serving in the scientific advisory board of the Eugenics Record Office and as first president of the American Eugenics Society. When his daughter Margaret was diagnosed with schizophrenia, Fisher had her treated at the New Jersey State Hospital at Trenton, whose director was the psychiatrist Henry Cotton. Cotton believed in a "focal sepsis" theory, according to which mental illness resulted from infectious material in the roots of teeth, bowel recesses, and other places in the body. Cotton also claimed that surgical removal of the infected tissue could alleviate the patient's mental disorder. At Trenton, Margaret Fisher had sections of her bowel and colon removed, which eventually resulted in her death. Irving Fisher nonetheless remained convinced of the validity of Dr. Cotton's treatment.

Were there other healthy campaigns by him?

sparked in him a vocation as a health campaigner. He was one of the founders of the Life Extension Institute, under whose auspices

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Foreigner is an English-American rock band, originally formed in New York City in 1976 by veteran English musician Mick Jones ex-Spooky Tooth and fellow Briton and ex-King Crimson member Ian McDonald along with American vocalist Lou Gramm. Jones came up with the band's name as he, McDonald and Dennis Elliott were British, while Gramm, Al Greenwood and Ed Gagliardi were American. Their biggest hit single, "I Want to Know What Love Is", topped the United Kingdom and United States charts among others. They are one of the world's best-selling bands of all time with worldwide sales of more than 80 million records, including 37.5 million records in the US.
Jones, the founder and only remaining original member of Foreigner, decided to take some time off before looking to form a new lineup in 2004. On July 25, 2004 in Santa Barbara, California at Fess Parker's DoubleTree Resort, Jones appeared at a benefit show for muscular dystrophy with a brand new version of Foreigner that included: Jeff Jacobs, Thom Gimbel, former Dokken bass player Jeff Pilson, future Black Country Communion drummer Jason Bonham (son of Led Zeppelin drummer John Bonham and leader of Bonham) and Bonham singer Chas West. West was front man for that show only and was eventually replaced by former Hurricane singer Kelly Hansen, who had sent the band an audition tape and was invited aboard in March 2005, making his debut with the group on March 11 at Boulder Station near Las Vegas. During their 2005 spring tour, Chas West briefly continued with the band as a special guest, playing rhythm guitar. Their 2005 BMG album, Extended Versions, featured the new line-up playing all their classic hits live in concert in one of the most "studio like, clean sounding" live album recordings produced. Foreigner joined Def Leppard along with Styx on tour in 2007. They also toured extensively in their own right in 2007 - the thirtieth anniversary of the release of their debut. In late 2007, keyboardist Jeff Jacobs left Foreigner after 16 years and was replaced, first by Paul Mirkovich then by Michael Bluestein (in 2008). And in 2008, Bonham also parted ways with Foreigner. Bryan Head was then brought in to fill the drum chair. But his tenure was short and he also departed to be replaced by the returning Tichy. The band released a greatest hits anthology on July 15, 2008, titled No End in Sight: The Very Best of Foreigner. The anthology included all of their greatest hits plus some new live recordings and a new studio track, "Too Late", which was their first new song release since the 1994 album Mr. Moonlight and the first recorded output of the new lineup. "Too Late" was released as a single on June 17, 2008.

what songs was he apart of?

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Timur was born in Transoxiana near the city of Kesh (modern Shahrisabz, Uzbekistan) some 80 kilometres (50 mi) south of Samarkand, part of what was then the Chagatai Khanate. His father, Taraqai, was a minor noble of the Barlas, a Mongolian tribe that had been turkified in many aspects. According to Gerard Chaliand, Timur was a Muslim, and he saw himself as Genghis Khan's heir. Though not a Borjigid or a descendent of Genghis Khan, he clearly sought to invoke the legacy of Genghis Khan's conquests during his lifetime.
Timur is regarded as a military genius, and as a brilliant tactician with an uncanny ability to work within a highly fluid political structure to win and maintain a loyal following of nomads during his rule in Central Asia. He was also considered extraordinarily intelligent - not only intuitively but also intellectually. In Samarkand and his many travels, Timur, under the guidance of distinguished scholars, was able to learn the Persian, Mongolian, and Turkish languages. (according to Ahmad ibn Arabshah, Timur didn't know Arabic) More importantly, Timur was characterized as an opportunist. Taking advantage of his Turco-Mongolian heritage, Timur frequently used either the Islamic religion or the law and traditions of the Mongol Empire to achieve his military goals or domestic political aims. Timur, mostly considered a barbarian, in fact was a well learned king, and did enjoy the company of scholars --he was tolerant and generous to them against his nature. Once Persian poet Hafez wrote a ghazal whose verse says if this Turk accept his homage: --For the black mole on his cheekI would give the cities of Samarkand and Bukhara Timur upbraided him for this verse and said; "By the blows of my well tempered sword I have conquered the greater part of the world to enlarge Samarkand and Bukhara, my capitals and residences; and you pitiful creature would exchange these two cities for a mole". Hafez replied "O Sovereign of the world, it is by the state of similar generosity that I have been reduced, as you see my present state of poverty." It is reported that the King was amazed by the witty answer and the poet departed with magnificent gifts. Timur used Persian expressions in his conversations often, and his motto was the Persian phrase rasti rusti (rsty rsty, meaning "truth is safety" or "veritas salus").

what career path did he take?
Timur, mostly considered a barbarian, in fact was a well learned king, and did enjoy the company of scholars --