Nietzsche is a major figure in Western philosophy. His work is radical, sometimes violent, often ironic; it fascinates anyone bold enough to delve into it, exerted a profound influence on modern intellectual history, and covers a wide range of subjects. Nietzsche's writings border on the poetic; his aphorisms are particularly well-known for conveying all the radicality of his thinking in a intense but light, sometimes amusing manner.

"The Prince" is the most famous of Machiavelli's works; it gives very clear, precise and realistic instructions on how to gain and maintain power, fortune, and glory, sometimes at the expense of others. Written in 1513, it is one of the most feared and hated political treatises, taken to be the first work in which the effect the leader desires to achieve is taken as more important than any abstract ideal or ethical value that might prevent him from taking immoral action.

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.

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.

Voltaire was a French writer famous for his wit and irony. They were his tools for launching vitriolic attacks on the established Catholic church, the adversaries of freedom of religion and expression, and on separation of church and state. His prolific writing took almost every possible literary form: plays, novels, essays, but also poems, historical and scientific works.

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.

Søren Kierkegaard, a name meaning "church's garden", is a Christian philosopher whose work had a considerable influence on western philosophy and theology. His thoughts focused primarly on what it means to become a subject of one's existence, what feelings arise when faced with life choices, and the relation with God through faith. He is credited with numerous reflections on the three stages of life; he also questioned existential despair, absurdity and anxiety.

In Mastery, Robert Greene's fifth book, he mines the biographies of great historical figures for clues about gaining control over our own lives and destinies. Picking up where The 48 Laws of Power left off, Greene culls years of research and original interviews to blend historical anecdote and psychological insight, distilling the universal ingredients of the world's masters.

Epictetus was born a slave, and became one of the most influent Stoic philosophers. 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. According to Epictetus, our own actions and attitudes are the only thing in our control; whatever else happens, we should examine calmly and dispassionately, because no amount of suffering will change the impact of external events.

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.