Nobody can make you feel inferior without your consent.
— Eleanor Roosevelt

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

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

You have no idea what a poor opinion I have of myself; and how little I deserve it.
— W. S. Gilbert

To be human means to feel inferior.
— infers quotation by Alfred Adler