Lev Nikolayevich Tolstoy was a Russian writer who primarily wrote novels and short stories. Later in life, he also wrote plays and essays. His two most famous works, the novels War and Peace and Anna Karenina, are acknowledged as two of the...

Friedrich Wilhelm Nietzsche was a German philologist, philosopher, cultural critic, poet and composer. He wrote several critical texts on religion, morality, contemporary culture, philosophy and science, displaying a fondness for metaphor,...

Friedrich Ludwig Gottlob Frege was a German philosopher, logician, and mathematician. Considered a major figure in mathematics, he is responsible for the development of modern logic and making contributions to the foundations of mathemat...

Bertrand Arthur William Russell, 3rd Earl Russell was a British philosopher, logician, mathematician, historian, writer, social critic, political activist, and Nobel laureate. At various points in his life, Russell considered himself a libe...

Albert Schweitzer was a French-German theologian, organist, writer, humanitarian, philosopher, and physician. A Lutheran, Schweitzer challenged both the secular view of Jesus as depicted by historical-critical methodology current at this ti...

Erwin Schrödinger, sometimes written as Erwin Schrodinger or Erwin Schroedinger, was a Nobel Prize-winning Austrian physicist who developed a number of fundamental results in the field of quantum theory, which formed the basis of wave mecha...

Martin Heidegger was a German philosopher and a seminal thinker in the Continental tradition and philosophical hermeneutics. According to the Internet Encyclopedia of Philosophy, he is "widely acknowledged to be one of the most original and...

Jean-Paul Charles Aymard Sartre was a French philosopher, playwright, novelist, screenwriter, political activist, biographer, and literary critic. He was one of the key figures in the philosophy of existentialism and phenomenology, and one...

Simone de Beauvoir was a French writer, intellectual, existentialist philosopher, political activist, feminist and social theorist. Though she did not consider herself a philosopher, she had a significant influence on both feminist existent...