Including letters, speeches, articles, and essays written before 1935, this collection offers a complete portrait of Einstein as a humanitarian and as a human being trying to make sense of the world changing around him.

Albert Einstein is widely considered as one of the greatest minds that ever lived. He developed the theory of relativity, one of the two pillars of modern physics alongside quantum mechanics, and penned the world's most famous equation, E=mc².

"Relativity: The Special and the General Theory" is a seminal work by Albert Einstein, first published in 1916, designed to explain the groundbreaking theories that reshaped our understanding of the universe. In this accessible text, Einstein introduces listeners to the Special Theory of Relativity, which addresses the relationship between space and time, and the General Theory of Relativity, which expands these concepts to include gravity as the curvature of space-time caused by mass and energy.

E=mc2: It may be Einstein’s most well-known contribution to modern science, but how many people understand the thought process or physics behind this famous equation? In this collection of his seven most important essays on physics, Einstein guides the listener step-by-step through the many layers of scientific theory that formed a starting point for his discoveries.

Albert Einstein (March 14, 1879 - April 18, 1955) was a German-born theoretical physicist, widely acknowledged to be one of the greatest and most influential physicists of all time. Best known for developing the theory of relativity, he also made important contributions to the development of the theory of quantum mechanics. Relativity and quantum mechanics are the two pillars of modern physics. His mass–energy equivalence formula E = mc2, which arises from relativity theory, has been dubbed "the world's most famous equation."

The Analysis of the Mind by Bertrand Russell is a collection of 15 lectures he delivered in 1920. Russell was a highly reputed philosopher, mathematician, and social critic, and would go on to win the Nobel Prize for Literature in 1950.

No Ordinary Time describes how the isolationist and divided United States of 1940 was unified under the extraordinary leadership of Franklin Roosevelt to become the preeminent economic and military power in the world.

Galileo’s Dialogue Concerning the Two Chief World Systems compares the Copernican or Heliocentric system with the Ptolemaic or Peripatetic, system of the cosmos. Published in Florence in 1632, it resulted in him being tried before the Inquisition. Using the dialogue form, Galileo masterfully shows the truth of the Copernican system that the Earth revolves around the Sun. The Dialogue is one of the most important treatises ever written. A work of supreme clarity and accessibility, it remains as accessible now as when it was published.

Throughout history, thinkers from mathematicians to theologians have pondered the mysterious relationship between numbers and the nature of reality. In this fascinating book, Mario Livio tells the tale of a number at the heart of that mystery: phi, or 1.6180339887.... This curious mathematical relationship, widely known as "The Golden Ratio", was discovered by Euclid more than 2,000 years ago. Since then it has shown a propensity to appear in the most astonishing variety of places.

By identifying the structure of DNA, the molecule of life, Francis Crick and James Watson revolutionized biochemistry and won themselves a Nobel Prize. At the time, Watson was only 24, a young scientist hungry to make his mark. His uncompromisingly honest account of the heady days of their thrilling sprint against other world-class researchers to solve one of science's greatest mysteries gives a dazzlingly clear picture of a world of brilliant scientists with great gifts, very human ambitions, and bitter rivalries.

Lucretius was born in 99 BC, and On the Nature of Things is his only surviving work. His aim was to free the Roman world from its two great terrors - the gods and death. Lucretius argues that the gods are not actively involved in life, so need not be appeased; and that death is the end of everything human - body and soul - and therefore should not be feared. But On the Nature of Things is also a poem of striking imagery, intimate natural observation and touching pathos.

In a career spanning 60 years, Sir Karl Popper has made some of the most important contributions to the 20th century discussion of science and rationality. The Myth of the Framework is a collection of some of Popper's most important material on this subject.

As philosophy professor Taylor Carman explains in his helpful introduction, Edmund Husserl (1859-1938) was the founder of modern phenomenology, one of the most important and influential movements of the 20th century. Ideas, published in 1913 – its full title is Ideas for a Pure Phenomenology and Phenomenological Philosophy – was the key work. It is arguably ‘the most fundamental and comprehensive statement of the fundamental principles of Husserl’s mature philosophy’.

A Concise History of the Middle East provides a comprehensive introduction to the history of this region. Spanning from the pre-Islamic era to the present, it explores the evolution of Middle Eastern institutions and culture, the influence of European colonialism and Western imperialism, regional modernization efforts, the struggle of various peoples for political independence, the Arab–Israel conflict, the reassertion of Islamist values and power, the issues surrounding the Palestinian Question, and more.

This Leibniz collection contains some of the philosopher’s most important works and ideas, spans three decades and illuminates the fascinating intellectual journey undertaken by him in his quest for truth. A prodigious polymath, Leibniz was a mathematician, philosopher, physicist and statesman and engaged with a sweeping range of ideas and disciplines, striving throughout his life to be at the cutting edge of scientific thinking. These Principal Essays are arranged in chronological order.