Photography is a brief complicity between foresight and luck.

No longer enslaved or made dependent by force of law, the great majority are so by force of property; they are still chained to a place, to an occupation, and to conformity with the will of an employer, and debarred by the accident of birth to both the enjoyments, and from the mental and moral advantages, which others inherit without exertion and independently of desert. That this is an evil equal to almost any of those against which mankind have hitherto struggles, the poor are not wrong in believing.

If opponents of all important truths do not exist, it is indispensable to imagine them and supply them with the strongest arguments which the most skillful devil's advocate can conjure up.

It is conceivable that religion may be morally useful without being intellectually sustainable.

Even if the received opinion be not only true, but the whole truth; unless it is suffered to be, and actually is, vigorously and earnestly contested, it will, by most of those who receive it, be held in the manner of a prejudice, with little comprehension or feeling of its rational grounds

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

There is nothing which an untrained mind shows itself more hopelessly incapable, than in drawing the proper general conclusions from its own experience. And even trained minds, when all their training is on a special subject, and does not extend to the general principles of induction, are only kept right when there are ready opportunities of verifying their inferences by facts.