Antonio Gramsci said this quote

Is it better to work out consciously and critically one's own conception of the world and thus, in connection with the labours of one's own brain, choose one's sphere of activity, take an active part in the creation of the history of the world, be one's own guide, refusing to accept passively and supinely from outside the moulding of one' own personality?

~ Antonio Gramsci

I'm a pessimist because of intelligence, but an optimist because of will.

~ Antonio Gramsci

The principle must always rule that ideas are not born of other ideas, philosophies of other philosophies; they are a continually renewed expression of real historical development. The unity of history (what the idealists call unity of the spirit) is not a presupposition, but a continuously developing process.

~ Antonio Gramsci

Ideas and opinions are not spontaneously born in each individual brain: they have had a centre of formation, or irradiation, of dissemination, of persuasion-a group of men, or a single individual even, which has developed them and presented them in the political form of current reality.

~ Antonio Gramsci