In my free time I do differential and integral calculus.
The imaginary flowers of religion adorn man's chains. Man must throw off the flowers, and also the chains.
The task is not just to understand the world but to change it.
All I know is that I am not a Marxist.
Free education for all children in public schools... Combination of education with industrial production
Modern society, which, soon after its birth, pulled Plutus by the hair of his head from the bowels of the earth, greets gold as its Holy Grail, as the glittering incarnation of the very principle of its own life.