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?

This is really the common mentality of prisoners: they read with great attention all the articles that deal with illnesses and send away for treatises and "be your own doctor" or "emergency treatments" and end up by discovering that they have at least 300 or 400 illnesses, whose symptoms they are experiencing.

I turn and turn in my cell like a fly that doesn't know where to die.

The starting-point of critical elaboration is the consciousness of what one really is, and is 'knowing thyself'as a product of the historical processes to date, which has deposited in you an infinity of traces, without leaving an inventory.

Revolutionaries see history as a creation of their own spirit, as being made up of a continuous series of violent tugs at the other forces of society - both active and passive, and they prepare the maximum of favourable conditions for the definitive tug (revolution).

I give culture this meaning: exercise of thought, acquisition of general ideas, habit of connecting causes and effects ... I believe that it means thinking well, whatever one thinks, and therefore acting well, whatever one does.

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