History does nothing; it does not possess immense riches, it does not fight battles. It is men, real, living, who do all this.

Society does not consist of individuals but expresses the sum of interrelations, the relations within which these individuals stand.

Misery motivates, not utopia.

Free education for all children in public schools... Combination of education with industrial production

The imaginary flowers of religion adorn man's chains. Man must throw off the flowers, and also the chains.

In the national struggles of the proletarians of the different countries, they point out and bring to the front the common interest of the entire proletariat, independently of all nationality.

Surplus-value and the rate of surplus-value are... the invisible essence to be investigated, whereas the rate of profit and hence the form of surplus-value as profit are visible surface phenomena