The social learning theory is the one most relevant to criminology, since it includes the acquisition of criminal behavior patterns. Social learning theorists, notably Albert Bandura, argue that people are not born with the ability to act criminally, but that they learn to be aggressive and commit crime through life’s experiences. Social learning theorists believe criminality is learned through a process called behavior modeling. In modern society, criminal and aggressive acts usually are modeled after three principal sources: family members, environmental experiences, and the mass media.