The shadow of fear cast by these pressures leads, we suspect, to an even larger voluntary curtailment of expression by those who seek to avoid controversy. Such pressure toward conformity is perhaps natural to a time of uneasy change and pervading fear. Especially when so many on our apprehensions are directed against an ideology, the expression of a dissident idea becomes a thing feared in itself, and we tend to move against it as against a hostile deed, with suppression. And yet suppression is never more dangerous than in such a time of social tension. Freedom has given the United States the elasticity to endure strain.
Freedom keeps open the path of novel and creative solutions, and enables change to come by choice.
Every silencing of a heresy, every enforcement of an orthodoxy, diminishes the toughness and resilience of our society and leaves it the less able to deal with stress. Now as always in our history, books are among our greatest instruments of freedom. They are almost the only means for making generally available ideas or manners of expression that can initially command only a small audience. They are the natural medium for the new idea and the untried voice from which comes the original contributions to social growth. They are essential to the extended discussion which serious thought requires, and to the accumulation of knowledge and ideas into organized collections.