Absolute morality is the regulation of conduct in such a way that pain shall not be inflicted.

The cruelty of a Fijian god, who, represented as devouring the souls of the dead, may be supposed to inflict torture during the process, is small compared with the cruelty of a God who condemns men to tortures which are eternal.

Of all the knowledge, that most worth having is knowledge about health! The first requisite of a good life is to be a healthy person.

Agnostics are people who, like myself, confess themselves to be hopelessly ignorant concerning a variety of matters, about which metaphysicians and theologians, both orthodox and heterodox, dogmatize with the utmost confidence.

We too often forget that not only is there 'a soul of goodness in things evil,' but very generally also, a soul of truth in things erroneous.

What a cage is to the wild beast, law is to the selfish man.

Science is organized knowledge.