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.

The chief danger in life is that you may take too many precautions.

Death is really a great blessing for humanity, without it there could be no real progress. People who lived for ever would not only hamper and discourage the young, but they would themselves lack sufficient stimulus to be creative.

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 truth is often a terrible weapon of aggression. It is possible to lie, and even to murder, with the truth.

We cannot say that if a child is badly nourished he will become a criminal. We must see what conclusion the child has drawn.

Courage is not an ability one either possess or lacks. Courage is the willingness to engage in a risk-taking behavior regardless of whether the consequences are unknown or possibly adverse. We are capable of courageous behavior provided we are willing to engage in it. Given that life offers few guarantees, all living requires risk-taking.