It is useful that while mankind are imperfect there should be different opinions, so is it that there should be different experiments of living; that free scope should be given to varieties of character, short of injury to others.

The demand for commodities is not the demand for labor.

In this age, the mere example of nonconformity, the mere refusal to bend the knee to custom, is itself a service.

It is historically true that a large proportion of infidels in all ages have been persons of distinguished integrity and honor.

The great creative individual . . . is capable of more wisdom and virtue than collective man ever can be.

The ne plus ultra of wickedness ... is embodied in what is commonly presented to mankind as the creed of Christianity.

There should be perfect freedom, legal and social, to do the action and stand the consequences. It would be a great misunderstanding of this doctrine to suppose that it is one of selfish indifference, which pretends that human beings have no business with each other's conduct in life, and that they should not concern themselves about the well-doing or well-being of one another, unless their own interest is involved.