Alfred Adler

A simple rule in dealing with those who are hard to get along with is to remember that this person is striving to assert his superiority; and you must deal with him from that point of view.

You can be healed of depression if every day you begin the first thing in the morning to consider how you will bring a real joy to someone else.

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.

To be human means to feel inferior.