Education is essential to change, for education creates both new wants and the ability to satisfy them.

The justification and the purpose of freedom of speech is not to indulge those who want to speak their minds. It is to prevent error and discover truth. There may be other ways of detecting error and discovering truth than that of free discussion, but so far we have not found them.

We cannot have a society half slave and half free; nor can we have thought half slave and half free. If we create an atmosphere in which men fear to think independently, inquire fearlessly, express themselves freely, we will in the end create the kind of society in which men no longer care to think independently or to inquire fearlessly.

We should not forget that our tradition is one of protest and revolt, and it is stultifying to celebrate the rebels of the past ... while we silence the rebels of the present.

Freedom is not a luxury that we can indulge in when at last we have security and prosperity and enlightenment; it is, rather, antecedent to all of these, for without it we can have neither security nor prosperity nor enlightenment.

History is a jangle of accidents, blunders, surprises and absurdities, and so is our knowledge of it, but if we are to report it at all we must impose some order upon it.

It is probably safe to say that over a long period of time, political morality has been as high as business morality.