Man is a machine and in the whole universe there is but a single substance, matter, variously modified.

Everyone is born with psychic abilities. It's just a matter of knowing how to tap into it.

The English, who eat their meat red and bloody, show the savagery that goes with such food.

Let us then submit to an invincible ignorance on which our happiness depends.

The brain has muscles for thinking as the legs have muscles for walking.

It is convention and arbitrary rewards which make all the merit and demerit of what we call vice and virtue.

The human body is a machine that winds up its own springs: it is a living image of the perpetual motion.