We must interpret a bad temper as a sign of inferiority. – Alfred Adler

The greater the feeling of inferiority that has been experienced, the more powerful is the urge to conquest and the more violent the emotional agitation. – Alfred Adler

The feeling of inferiority rules the mental life and can be clearly recognized in the sense of incompleteness and unfulfillment, and in the uninterrupted struggle both of individuals and humanity. – Alfred Adler

Exaggerated sensitiveness is an expression of the feeling of inferiority. – Alfred Adler