Maslow noted that some human needs were more powerful than others. He divided those needs into five general categories, from most urgent to most advanced: physiological, safety, belonging/love,esteem, and self-actualization. Maslow first published his theory in the 1940s, and it became a widely accepted notion in the fields of psychology and anthropology. Maslow's theory can also be defined as "intensity at a task". This means that greater the motivation, the more constant and intense one will perform a specific task. The basis behind this theory is the knowledge that all behavioris goal driven, meaning one will do tasks according to what they obtain after the task is complete. Maslow has been a very inspirational figure in personality theories.