I believe that as long as a single man may try, any unjustifiable barrier against his efforts is a barrier against mankind.

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.

This world demands the qualities of youth; not a time of life but a state of mind, a temper of the will, a quality of the imagination, a predominance of courage over timidity, of the appetite for adventure over the life of ease.

...if we want to meet the obligations of our civilization and our culture which are to create communities for our children that provide them with the same opportunities for dignity and enrichment as the communities that our parents gave us, we've got to start by protecting that infrastructure; the air that we breathe, the water that we drink, the landscapes that enrich us.

Progress is a nice word. But change is its motivator. And change has its enemies.

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.

When you teach a man to hate and fear his brother, when you teach that he is a lesser man because of his color or his beliefs or the policies he pursues, when you teach that those who differ from you threaten your freedom or your job or your family, then you also learn to confront others not as fellow citizens but as enemies...