Clyde Kluckhohn was a famous anthropologist, which means he studied the cultures of different people. He wrote many books and did a lot of research on how different people live, what their customs are, and why they act the way they do. He believed that it was important to understand different cultures in order to understand people better. He was also known for his ideas about how culture has an effect on people's thoughts, feelings, and behaviors. In other words, he thought that what we think and do is not just because of genetics, but that it's also shaped by the culture in which we grow up.