He went through a lot of war and struggles during his life, but he used that to inspire his research. He said when he was young, a German Nazi hugged him and cried, prompting him to study psychology because he thought that people are extremely complicated and interesting. During his research, he faced negative responses, as behavioural psychology was not a very prominent field at the time, so he was treated with disdain, contempt and he was perceived as incorrect. But he fought through the criticisms and eventually got recognized. Daniel Kahneman is a courageous man, and an amazing scientist.