The peculiar evil of silencing the expression of an opinion is that it is robbing the human race; those who dissent from the opinion, still more than those who hold it.
The sole end for which mankind are warranted, individually or collectively, in interfering with the liberty of action of any of their number, is self-protection.
The only way in which a human being can make some approach to knowing the whole of a subject is by hearing what can be said about it by persons of every variety of opinion.
The first man who, having enclosed a piece of ground, thought of saying 'This is mine,' and found people simple enough to believe him, was the true founder of civil society.
The true ethical test is not only the readiness to save the victims, but also — even more — the ruthless dedication to annihilate those who made them victims.
Not everybody deserves to be treated equally. They have rights as free agents, but, if they take advantage of those rights, the social contract is broken and it becomes the duty of others to carry out justice for a little and for a lot.