- founder of the school of individual psychology.[2] (Location 34)
- His emphasis on the importance of feelings of belonging, relationships within the family, and birth order set him apart from Freud and others in their common circle. (Location 35)
- A Review of General Psychology survey, published in 2002, ranked Adler as the 67th most eminent psychologist (Location 43)
- He was second of the seven children of a Jewish couple, Pauline (Beer) and Leopold Adler. (Location 50)
- throughout his childhood, he maintained a rivalry with his older brother.[7] This rivalry was spurred on because Adler believed his mother preferred his brother over him. (Location 57)
- Early on, he developed rickets, which kept Alfred from walking until he was four years old. At the age of four, he developed pneumonia and heard a doctor say to his father, “Your boy is lost”. Along with being run over twice and witnessing his younger brother’s death, this sickness contributed (Location 61)
- After studying at the University of Vienna, he specialized as an eye doctor, and later in neurology and psychiatry.[15]