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

There is no royal road to science, and only those who do not dread the fatiguing climb of its steep paths have a chance of gaining its luminous summits. (Preface to the French edition).

In all of human history no country or no people have suffered such terrible slavery, conquest and foreign oppression and no country and no people have struggled so strenuously for their emancipation than Sicily and the Sicilians.

The need of a constantly expanding market for its products chases the bourgeoisie over the entire surface of the globe.

Music is the mirror of reality.

They don't know it, but they are doing it.

Communism begins where atheism begins.