In Machiavelli’s ‘The Prince’ he advises princes and politicians how to be a better and stronger ruler.
He does not believe that the church has the right to have any authority over a secular state unlike passed monarchs who submitted to the church. Machiavelli says that it is better to be a feared ruler than a loved ruler, but never should he be hated. By being hated the people may revolted against their ruler. He also advises rulers to keep themselves out of other people’s business.
Machiavelli was one of the first men to influentially introduce the idea of a secular state in the middle ages. Perhaps Machiavelli was the biggest influence on our government today.