Philosophy itself can be defined simply: it is the old human habit of stepping back and asking the biggest questions possible. What is true? What is a good life? What do we owe one another? Are we really free? Some philosophers stayed mostly inside schools and books, but the names below did something larger. They changed how ordinary people talk about right and wrong, reason and emotion, society and power, even the meaning of being a person at all. In one way or another, they helped reshape how human beings understand themselves and the world around them.
#1: Socrates
Long before philosophy became a subject in classrooms, Socrates was wandering around Athens asking questions that made people uncomfortable. Born in ancient Greece around 470 BCE, he wrote nothing himself, which is part of what makes him so intriguing. We know him mostly through the work of others, especially Plato. What made Socrates unforgettable was not a grand system or a tidy book of conclusions. It was his method.
