To think great thoughts you must be heroes as well as idealists.
The minute a phrase, becomes current, it becomes an apology for not thinking accurately to the end of the sentence.
Fame usually comes to those who are thinking about something else.
For my part I think it is a less evil that some criminals should escape, than that the government should play an ignoble part.
We must think things not words, or at least we must constantly translate our words into the facts for which they stand, if we are to keep to the real and the true.
Most of the things we do, we do for no better reason than that our fathers have done them or our neighbors do them, and the same is true of a larger part than what we suspect of what we think.
The history of intellectual growth and discovery clearly demonstrates the need for unfettered freedom, the right to think the unthinkable, discuss the unmentionable, and challenge the unchallengeable. To curtail free expression strikes twice at intellectual freedom, for whoever deprives another of the right to state unpopular views necessarily also deprives others of the right to listen to those views.
I think it not improbable that man, like the grub that prepares a chamber for the winged thing it never has seen but is to be - that man may have cosmic destinies that he does not understand.
I think that we should be eternally vigilant against attempts to check the expression of opinions that we loathe and believe to be fraught with death, unless they so imminently threaten immediate interference with the lawful and pressing purposes of the law that an immediate check is required to save the country.
Certitude leads to violence. This is a proposition that has an easy application and a difficult one. The easy application is to ideoologues, dogmatists, and bullies--people who think that their rigtness justifies them in imposing on anyone who does not happen to suscribe to their particular ideology, dogma or notion of turf. If the conviction of rightness is powerful enough, resistance to it will be met, sooner or later by force. There are people like this in every sphere of life, and it is natural to feel that the world would be a better place without them!