Drawing on Da Vinci's notebooks, inventions, and legendary works of art, Gelb introduces Seven Da Vincian Principles - the essential elements of genius - from curiosità, the insatiably curious approach to life to connessione, the appreciation for the interconnectedness of all things. With Da Vinci as your inspiration, you will discover an exhilarating new way of thinking. And step by step, through exercises and provocative lessons, you will harness the power - and awesome wonder - of your own genius.

Leonardo da Vinci created the two most famous paintings in history, The Last Supper and the Mona Lisa. But in his own mind, he was just as much a man of science and engineering. With a passion that sometimes became obsessive, he pursued innovative studies of anatomy, fossils, birds, the heart, flying machines, botany, geology, and weaponry.

Take a riveting tour of the Italian peninsula, from the glittering canals of Venice to the lavish papal apartments and ancient ruins of Rome. In these 24 lectures, Professor Bartlett traces the development of the Italian city-states of the Middle Ages and the Renaissance, showing how the modern nation of Italy was forged out of the rivalries, allegiances, and traditions of a vibrant and diverse people.

One of the most significant books ever written by a head of state, the Meditations are a collection of philosophical thoughts by the Emperor Marcus Aurelius (121 - 180 ce). Covering issues such as duty, forgiveness, brotherhood, strength in adversity and the best way to approach life and death, the Meditations have inspired thinkers, poets and politicians since their first publication more than 500 years ago. Today, the book stands as one of the great guides and companions - a cornerstone of Western thought.

Continuing where Thus Spoke Zarathustra left off, Nietzsche's controversial work Beyond Good and Evil is one of the most influential philosophical texts of the 19th century and one of the most controversial works of ideology ever written. Attacking the notion of morality as nothing more than institutionalised weakness, Nietzsche criticises past philosophers for their unquestioning acceptance of moral precepts. Nietzsche tried to formulate what he called "the philosophy of the future".

The Republic poses questions that endure: What is justice? What form of community fosters the best possible life for human beings? What is the nature and destiny of the soul? What form of education provides the best leaders for a good republic? What are the various forms of poetry and the other arts, and which ones should be fostered and which ones should be discouraged? How does knowing differ from believing?

John Milton's Paradise Lost is one of the greatest epic poems in the English language. It tells the story of the Fall of Man, a tale of immense drama and excitement, of rebellion and treachery, of innocence pitted against corruption, in which God and Satan fight a bitter battle for control of mankind's destiny.

The most thorough statement of one of Emerson's recurrent themes, the need for each individual to avoid conformity and false consistency, and follow his or her own instincts and ideas. It is the source of one of Emerson's most famous quotations, "A foolish consistency is the hobgoblin of little minds." This essay is a considered a watershed moment in which transcendentalism became a major cultural movement. An American classic.

With Professor Esolen you will enter the terrible gates of Hell and progress level by infernal level to its diabolical depths. Professor Esolen places a special emphasis on the drama of the poem, leading you through each canto in succession. Professor Esolen will more than satisfy your curiosity about Hell and the fate of the damned. He will reveal in all its starkness the horror of sin and awaken in your heart a longing for divine love.

The Consolation of Philosophy is one of the key works in the rich tradition of Western philosophy, partly because of the circumstances in which it was written. Anicius Manlius Severinus Boethius (c480-c524) was of aristocratic Roman birth and became consul and then master of offices at Ravenna, one of the highest posts under the Ostrogothic Roman ruler Theodoric. But Boethius was unjustly charged with treason in 524, and this led to house arrest, then torture and execution.

Schopenhauer was just 30 when his magnum opus, Die Welt als Wille und Vorstellung, a work of considerable learning and innovation of thought, first appeared in 1818.

Much to his chagrin and puzzlement (so convinced was he of its merits), it didn't have an immediate effect on European philosophy, views and culture. It was only decades later that it was recognised as one of the major intellectual landmarks of the 19th century.

Towards the end of his life, Seneca the Younger (c4 BCE-65 CE) began a correspondence with a friend in Sicily, later collected under the title The Moral Epistles. In these 124 letters, Seneca expresses, in a wise, steady and calm manner, the philosophy by which he lived - derived essentially from the Stoics. The letters deal with a variety of specific topics - often eminently practical - such as 'On Saving Time', 'On the Terrors of Death', 'On True and False Friendships', 'On Brawn and Brains' and 'On Old Age and Death'.

We see, as they perhaps do not, that to many of them, this series of lessons will be as seed planted in fertile soil - which will in due time put forth sprouts, which will force their way gradually into the sunlight of consciousness where they will put forth leaves, blossom and fruit. Many of the fragments of truth which will be presented to you will not be recognized by you at this time; but in years to come, you will recognize the verity of the impressions which will be conveyed to you in these lessons.

This is a beautiful description of Helen Keller's discoveries as she learns to appreciate, through the sense of touch, the world around her. Loss of sight and hearing only increase her joy of life and its treasures.

The Kybalion has long fascinated readers and listeners with its exploration of hermetic wisdom. Credited to the mysterious Three Initiates, The Kybalion is an esoteric classic that has remained popular since its initial publication in 1908. The book explores the seven Hermetic principles - including the principles of causation, mental transmutation, and polarity - and the philosophies it contains became founding ideas in the New Thought movement.