Karl marx

The human being is in the most literal sense a political animal, not merely a gregarious animal, but an animal which can individuate itself only in the midst of society.

Medicine heals doubts as well as diseases.

Machines were, it may be said, the weapon employed by the capitalists to quell the revolt of specialized labor.

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

The more the division of labor and the application of machinery extend, the more does competition extend among the workers, the more do their wages shrink together.

The ideas of the ruling class are in every epoch the ruling ideas, i.e., the class which is the ruling material force of society, is at the same time its ruling intellectual force.

Landlords, like all other men, love to reap where they never sowed.

Capital is money, capital is commodities. By virtue of it being value, it has acquired the occult ability to add value to itself. It brings forth living offspring, or, at the least, lays golden eggs.

Experience praises the most happy the one who made the most people happy.

Natural science will in time incorporate into itself the science of man, just as the science of man will incorporate into itself natural science: there will be one science.