Smith and Mackie (2007) defined it by saying "The self-concept is what we think about the self; self-esteem, is the positive or negative evaluations of the self, as in how we feel about it."
Smith and Mackie (2007) defineerisid nii: "Mina-käsitlus on see, mida me arvame endast ja enesehinnang on positiivne või negatiivne hinnang sellele, kuidas me ennast tunneme."