The class struggle necessarily leads to the dictatorship of the proletariat.
Between capitalist and communist society there lies the period of the revolutionary transformation of the one into the other. Corresponding to this is also a political transition period in which the state can be nothing but the revolutionary dictatorship of the proletariat.
All history is nothing but a continuous transformation of human nature.
Reason has always existed, but not always in a reasonable form.
The way people get their living determines their social outlook.
Philosophy studies the world, but the point is to change it.