Every society gets the kind of criminal it deserves.

Each nation has different obstacles and different goals, shaped by the vagaries of history and of experience. Yet as I talk to young people around the world I am impressed not by the diversity but by the closeness of their goals, their desires and their concerns and their hope for the future.

Our attitude towards immigration reflects our faith in the American ideal. We have always believed it possible for men and women who start at the bottom to rise as far as the talent and energy allow. Neither race nor place of birth should affect their chances.

This much is clear: violence breeds violence, repression brings retaliation, and only a cleansing of our whole society can remove this sickness from our soul.

Yet it is the one essential, vital quality for those who seek to change a world which yields most painfully to change.

The future does not belong to those who are content with today, apathetic toward common problems and their fellow man alike, timid and fearful in the face of bold projects and new ideas. Rather, it will belong to those who can blend passion, reason and courage in a personal commitment to the great enterprises and ideals of American society.

All of us might wish at times that we lived in a more tranquil world, but we don't. And if our times are difficult and perplexing, so are they challenging and filled with opportunity.