C. S. Lewis was a British writer whose books have sold millions of copies worldwide after having been translated into over 30 languages. His works, such as The Chronicles of Narnia, have inspired the works of other famous authors. Lewis' work continues to attract readership and he was ranked 11th on The Times' 50 greatest British writers since 1945 list.
Jane Goodall is an English anthropologist and primatologist. Goodall's research proved that chimpanzees could use tools like stalks of grass to fish out termites from termite holes; this also challenged the long-held belief that chimpanzees were vegetarians. Goodall also discovered that chimpanzees are capable of emotions like sorrow and joy. Goodall is also credited with founding the Jane Goodall Institute.
Bertrand Russell was a British polymath and Nobel laureate. His work, which is spread across various fields, has had a considerable influence on philosophy, cognitive science, artificial intelligence, mathematics, linguistics, and logic. Russell is also credited with leading the revolt against idealism in Britain and is regarded as one of the founders of analytic philosophy.
Francis Bacon was a Renaissance philosopher and author who was known as the Father of Empiricism, because of his belief in the scientific method and theory that scientific knowledge can only be created through inductive reasoning and experience. He was later knighted and served as the first Queen's counsel.
Mary Wollstonecraft was an English writer, advocate of women's rights, and philosopher. Wollstonecraft, who attracted a lot of attention for her unconventional personal relationships, is widely considered a founding feminist philosopher. Although her unorthodoxy initially attracted criticisms, her advocacy of women's equality became increasingly important during the 20th century. Modern-day feminists cite her works and her life as important influences.
Alan Watts was a British writer, philosopher, and speaker. He is credited with popularizing Hinduism, Taoism, and Buddhism in the Western world. A prolific writer, Alan Watts wrote one of Buddhism's first bestselling books, The Way of Zen. He also explored psychedelics and human consciousness in his works, such as The Joyous Cosmology and The New Alchemy.
Thomas Hobbes was an English philosopher. Widely regarded as the co-founder of modern political philosophy, Hobbes is best known for his influential book Leviathan. Apart from political philosophy, Thomas Hobbes also contributed immensely to various other fields, such as ethics, theology, geometry, history, and jurisprudence.
John Maynard Keynes was an English economist. His ideas are credited with changing the theory and practice of the economic policies and macroeconomics of governments at a fundamental level. Counted among the 20th century's most influential economists, Keynes' ideas are the basis for Keynesian economics. In 1999, he was named in Time magazine's Most Important People of the Century list.
15 Lucy Worsley
16 Thomas Paine
English-born American political activist, philosopher, and revolutionary, Thomas Paine, is credited to have penned some of the most influential pamphlets at the start of the American Revolution. His works inspired the common people of America and motivated them to fight for independence from British rule. He was ostracized for criticizing Christianity and died a lonely man.
17 Karl Popper
19 George Boole
George Boole is remembered for pioneering Boolean algebra, a tool used in digital computer circuits. More of a self-taught mathematician, Boole began teaching at 16 and later grew up to be a math professor at Queen’s College, Cork. His work in differential equations and algebraic logic was groundbreaking.
Samuel Coleridge was an English poet, philosopher, theologian, and literary critic. He is credited with co-founding the Romantic Movement in England along with his friend William Wordsworth. Despite struggling from bouts of depression and anxiety throughout his adult life, Samuel Coleridge had a major influence on American transcendentalism and writers like Ralph Waldo Emerson.
Herbert Spencer was the man behind the expression “survival of the fittest,” after reading Charles Darwin's iconic work On the Origin of Species. The British anthropologist, sociologist, and philosopher introduced the concept of Social Darwinism, which applied the theory of evolution to societies and social classes.
22 William Penn
William Penn was a writer and one of the earliest members of the Quakers. He is credited with founding the Province of Pennsylvania. He also oversaw the planning and development of the city of Philadelphia. Penn has several universities and schools named in his honor, including the William Penn University in Iowa.
26 John Dee
Philosopher and author Roger Scruton is best remembered for his work as an editor of The Salisbury Review and for his countless books on topics such as art, sexuality, and political philosophy. He also taught at Boston University and other institutes, and was a skilled pianist and composer, too.
28 Robert Hooke
Scientist Robert Hooke, also called England's Leonardo, initially gained recognition as an architect, conducting surveys following the Great Fire of London. He also taught geometry and was part of the Royal Society. He assisted Robert Boyle and eventually developed his own microscope, thus becoming the first to visualize micro-organisms.
Alfred North Whitehead was a British mathematician and philosopher, best known for his collaboration with his student Bertrand Russell on Principal of Mathematics, a three-volume work on the foundations of mathematics. Also known for his pioneering works on process philosophy and metaphysics, he is credited with developing a comprehensive metaphysical system that differs from most Western philosophies.
William of Ockham, also known as Doctor Invincibilis, is chiefly remembered as one of the pioneers of nominalism. The 14th-cenntury Franciscan friar was also a scholar and philosopher, and laid the foundation of Occam’s razor. His written works include Summa logicae and his commentary on his own lectures, Sentences.
British historian and philosopher Isaiah Berlin is best remembered for his concepts of liberal theory and value pluralism. He is also considered a pioneer of intellectual history. Initially a philosophy lecturer, he later deviated to political science. He also penned iconic works such as The Hedgehog and the Fox.
36 David Harvey
37 Max Müller
Max Müller was a German-born Orientalist and philologist. Müller is credited with co-founding the western academic disciplines of religious studies and Indian studies. In 1874, he was honored with the Pour le Mérite. He received the prestigious Bavarian Maximilian Order for Science and Art in 1875. In India, the Goethe Institutes are named in his honor.
38 Dan Jones
43 J. L. Austin
Philosopher J. L. Austin is remembered for his study on ordinary-language philosophy and is also considered a pioneer of the theory of speech acts. His lectures at Harvard were later collected in How to Do Things with Words. He died of cancer while developing a theory on sound symbolism.
44 Derek Parfit
Philippa Foot is remembered as a forerunner of what is now known as virtue ethics. Granddaughter of American president Grover Cleveland, Foot laid down the Trolley problem and believed that the morality of any act is related to its rationality. She was also associated with the charitable organization Oxfam.
British philosopher and mathematician Frank P. Ramsey was the son of a famed mathematician and later laid down the Ramsey theory of mathematical logic. The Cambridge alumnus also translated Ludwig Wittgenstein’s Tractatus Logico-Philosophicus but died at age 26, probably due to a liver infection he contracted while swimming.
47 Alan Clark
49 A.J. Ayer
Educated at the prestigious Eton College and the University of Oxford, A.J. Ayer grew up to popularize logical positivism. During World War II, he had been an MI6 spy. Known for his bestselling work Language, Truth, and Logic, he promoted ideas such as emotivist ethics and the verification principle.
Noted 20th-century political philosopher H. L. A. Hart was a practicing lawyer and had also worked with MI5 during World War II. Known for his iconic works such as The Concept of Law and Law, Liberty and Morality, he made significant contributions to the field of legal positivism.