This also shows how people didn't want to search for their own understanding or educate themselves. And this is still often true today. People feel that if someone important and respected says that something is right, then it must be so. But even though Aristotle was a great man who inspired many great scientists and philosophers after him, he was wrong at times. And Galilei too made mistakes. He is now known as the father of astronomy but he believed that the earth moved round the sun in a perfect circle. He was wrong. Therefore our understanding of the world around us is constantly growing and changing. In other words, we learn more every day and none of us can ever sit back and say, "We know it all". We need to thank the great men of the past for the wisdom