I cannot say that our country could have no secret police without becoming totalitarian, but I can say with great conviction that it cannot become totalitarian without a centralized national police.

I see no reason why I should be consciously wrong today because I was unconsciously wrong yesterday.

When the Supreme Court moved to Washington in 1800, it was provided with no books, which probably accounts for the high quality of early opinions.

The price of freedom of religion or of speech or of the press is that we must put up with, and even pay for, a good deal of rubbish.

Due process requires some definite link, some minimum connection, between a state and the person, property or transaction it seeks to tax.

Freedom to differ is not limited to things that do not matter much. That would be a mere shadow of freedom. The test of its substance is the right to differ as to things that touch the heart of the existing order.

Intellectual freedom means the right to re-examine much that has been long taken for granted. A free man must be a reasoning man, and he must dare doubt what a legislative or electoral majority may most passionately assert.