In Europe itself it is not probable that war will ever absolutely cease until science discovers some destroying force so simple in its administration….

A day will come when the European god of the nineteenth century will be classed with the gods of Olympus and the Nile..

Artistic genius is an expansion of monkey imitativeness..

As a single atom man is an enigma: as a whole he is a mathematical problem. As an individual he is a free agent, as a species the offspring of necess….

Open the book of universal history at what period we may, it is always the India trade which is the cause of internal industry and foreign negotiatio….

A religion so cheerless, a philosophy so sorrowful, could never have succeeded with the masses of mankind if presented only as a system of metaphysic….

One fact must be familiar to all those who have any experience of human nature - a sincerely religious man is often an exceedingly bad man..

Our enlightened posterity will look back upon us who eat oxen and sheep, just as we look upon cannibals..

If we look into ourselves we discover propensities which declare that our intellects have arisen from a lower form; could our minds be made visible w….

What a state of society is this in which freethinker is a term of abuse, and in which doubt is regarded as sin?.

One book that has influenced the writer very strongly is Winwood Reade's Martyrdom of Man...It is still an extraordinarily inspiring presentation of ….

To cultivate the intellect is therefore a religious duty; and when this truth is fairly recognized by men, the religion which teaches that the intell….

All doctrines relating to the creation of the world, the government of man by superior beings, and his destiny after death, are conjectures which hav….

The essence of religion is inertia; the essence of science is change. It is the function of the one to preserve, it is the function of the other to i….

The philosophic spirit of inquiry may be traced to brute curiosity, and that to the habit of examining all things in search of food. Artistic genius ….

It may safely be asserted that the art of war will soon be reduced to a simple question of expenditure and credit, and that the largest purse will be….

Doubt is the offspring of knowledge: the savage never doubts at all..

We live between two worlds; we soar in the atmosphere; we creep upon the soil; we have the aspirations of creators and the propensities of quadrupeds….

Christians believe themselves to be the aristocracy of heaven upon earth, they are admitted to the spiritual court, while millions of men in foreign ….

As for the system of the Commune, which makes it impossible for a man to rise or fall, it is merely the old caste system revived; if it could be put ….

And then, the Earth being small, mankind will migrate into space, and will cross the airless Saharas which separate planet from planet and sun from s….