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.

Among his many feats, Lincoln is widely remembered for having paved the way for the abolition of slavery, before his assassination in 1865. These 100 quotes have been selected to introduce you to one of the greatest political minds that lived, in an efficient and convenient format.

Sir Winston Churchill was a British statesman, orator, and author who, as prime minister, rallied the British people during World War II and led Britain to an allied victory. Churchill's "bulldog" spirit seemed to summarise the mood of the British people even during the bad times, such as Dunkirk, and the inspirational victories, such as the Battle of Britain. His was a brilliant mind, full of wit and intelligence; his oratory brilliance and his admirable style led him to win the Nobel Prize in Literature in 1953.

Socrates is an enigmatic figure, known chiefly through the accounts of others like Plato and Aristophanes. He was one of the most brilliant intellects ever, and devised what would later be called the Socratic method, which is a way of leading one's interlocutor to see his errors and contradictions through clever questioning before leading him to the truth. In ancient Athens, Socrates was widely known as a "gadfly", that is, an annoying insect buzzing at people's ears, because he kept questioning prejudices and contradictions; he was eventually tried and executed for "corrupting the minds of the youth".

Mark Twain is one of the wittiest and most prolific writers of all time. He is mostly known for "The Adventures of Tom Sawyer" and its sequel, "The Adventures of Huckleberry Finn", which is often called the Great American Novel.

The philosophy of Confucius was so powerful that it dominated intellectual life in ancient China for centuries. It even came to be considered a religion, and there are still temples where Confucius is worshipped as the God of Culture. His writings were transmitted as aphorisms, each one of them one concentrated teaching about philosophy, ethics, or society.

Marcus Aurelius was a Roman Emperor, the last of the Five Good Emperors, and one of the most important Stoic philosophers, along with the slave Epictetus. Marcus Aurelius wrote the Meditations while in a military campaign; it was a series of notes written for no one but himself in his quest for self-improvement. Stoicism is the attitude allowing one to free oneself from the unnecessary suffering that arises from anxiety about events that are beyond our control; therefore, it can be of tremendous importance in one's life.

In his lifetime, Ralph Waldo Emerson was the most widely known man of letters in America, establishing himself as a prolific poet, essayist, popular lecturer, and advocate of social reforms. He was considered one of the great orators of the time, and his enthusiasm and respect for his audience enraptured crowds. As a poet and philosopher, he led the Transcendentalist movement, which professes the belief that everything in ouf world is a microcosm of the universe, and in the infinitude of individual man.

Often the decision between a customer choosing you over someone like you is your ability to know exactly what to say, when to say it, and how to make it count. Phil M. Jones has trained more than two million people across five continents and over 50 countries in the lost art of spoken communication. In Exactly What to Say, he delivers the tactics you need to get more of what you want.

Gautama Buddha is also known as Siddharta Gautama, or simply the Buddha, which means "Awakened" or "Enlightened". Born a prince, he chose a path of ascetism only to realize that it was as profound an illusion as self-indulgence. He achieved Enlightenment after 49 days of meditation; his awakening led him to discover the cause of suffering and the ways to eliminate it. These discoveries founded Buddhism, and his "Four Noble Truths" still form the heart of its teachings.

In her latest groundbreaking book, The Let Them Theory, Mel Robbins—New York Times bestselling author and one of the world's most respected experts on motivation, confidence, and mindset—teaches you how to stop wasting energy on what you can't control and start focusing on what truly matters: YOU. Your happiness. Your goals. Your life.

How to enrich your life and destroy doubt in five seconds. Throughout your life, you've had parents, coaches, teachers, friends, and mentors who have pushed you to be better than your excuses and bigger than your fears. What if the secret to having the confidence and courage to enrich your life and work is simply knowing how to push yourself?

For David Goggins, childhood was a nightmare--poverty, prejudice, and physical abuse colored his days and haunted his nights. But through self-discipline, mental toughness, and hard work, Goggins transformed himself from a depressed, overweight young man with no future into a US Armed Forces icon and one of the world's top endurance athletes. The only man in history to complete elite training as a Navy SEAL, Army Ranger, and Air Force tactical air controller, he went on to set records in numerous endurance events.

The 13 chapters of The Art of War, each devoted to one aspect of warfare, were compiled by the high-ranking Chinese military general, strategist, and philosopher Sun-Tzu. In spite of its battlefield specificity, The Art of War has found new life in the modern age, with leaders in fields as wide and far-reaching as world politics, human psychology, and corporate strategy finding valuable insight in its timeworn words.

Mel Robbins is back! The international bestselling phenomenon and creator of The Five Second Rule and Kick Ass with Mel Robbins returns to help you tackle the single biggest obstacle you face: fear. This life-changing Audible Original features a powerful mix of one-on-one life-coaching sessions and a personal narrative with vital take-aways that you can start using immediately.