It was "Charles Darwin" who argued in The Origin of Species that living things have changed over time because of the struggle for limited resources--also due to a process called "Natural Selection".
(In English) What are monopoly capitalism and financial capitalism?
Monopoly capitalism is a capitalist system typified by trade monopolies in the hands of a few people. (Source: definition of monopoly capitalism on GoogIe.)
Financial capitalism is the subordination of processes of production to the accumulation of money profits in a financial system. (Source: Wikipedla.)
I am not very good at speaking Spanish, so I made my response in English. I hope this helps!
He was an author so he contributed by writing books to acknowledge the age of enlightment of literature and... other things!