This book consists of 4 amazing titles:

John Locke - Although considered as a pure politician and idealist by some, John Locke's philosophical views on life have inspired many to take a step back and reassess the nature of governments, property, and human rights. He was an advocate of freedom and liberty. His influence cannot be underestimated when looking at the philosophical debates that have been held since his time, let alone during his lifetime. 

David Hume - David Hume was a Scottish philosopher and historian. He was also known for his essays and economic analyses. He supported empiricism, skepticism, and naturalism in his own little way, which shed light on life and reasoning in a distinct manner he has propagated in various, ethical ways.

Erasmus - He stood for humanism, children's rights, and theological ideologies that he wasn't afraid to spread across the Dutch nation, which was going through some dramatic transformations at that time. His political and theological ideas should not be ignored, and as a Christian philosopher, he has had a huge impact on the distant culture of the Netherlands, Protestantism, and more. 

Immanuel Kant - Listen to a handy synopsis, overview, and background of Immanuel Kant and his philosophical teachings. Immanuel Kant was born in the 18th century in Prussia. So actually, he wasn't originally from Germany. Nonetheless, he set the stage for German philosophy in the following century.