Karl Marx

The proletarians have nothing to lose but their chains.

Let the ruling classes tremble at a communist revolution. The proletarians have nothing to lose but their chains. They have a world to win.

WORKERS OF ALL COUNTRIES, UNITE!

The bourgeoisie has stripped of its halo every occupation hitherto honored and looked up to with reverent awe. It has converted the physician, the lawyer, the priest, the poet, the man of science, into its paid wage laborers.

The history of all hitherto existing society is the history of class struggles.

Design must be proved before a designer can be inferred. The matter in controversy is the existence of design in the Universe, and it is not permitted to assume the contested premises and thence infer the matter in dispute.

The belief of an infinity of creative and created Gods, each more eminently requiring an intelligent author of his being than the foregoing, is a direct consequence of the premises, which you have stated. The assumption that the Universe is a design, leads to a conclusion that there are infinity of creative and created Gods, which is absurd

To suppose some existence beyond, or above them, is to invent a second and superfluous hypothesis to account for what has already been accounted for by the laws of motion and the properties of matter. I admit that the nature of these laws is incomprehensible, but the hypothesis of a Deity adds a gratuitous difficulty, which so far from alleviating those that it is adduced to explain, requires new hypotheses for the elucidation of its own inherent contradictions

. The criteria of order and disorder are as various as those beings from whose opinions and feelings they result.

It is manifest that we cannot reason with respect to the universal system from that which only exists in relation to our own perceptions.

it requires, indeed, a mind considerably tinctured with science, and enlarged by cultivation to contemplate itself, not as the centre and model of the Universe, but as one of the infinitely various multitude of beings of which it is actually composed.