One cannot live in society and be free from society.

The soundest strategy in war is to postpone operations until the moral disintegration of the enemy renders the delivery of the mortal blow both possible and easy.

The most important thing when ill is to never lose heart.

There are decades where nothing happens; and there are weeks where decades happen.

One of the chief symptoms of every revolution is the sharp and sudden increase in the number of ordinary people who take an active, independent and forceful interest in politics.

The history of all countries shows that the working class exclusively by its own effort is able to develop only trade-union consciousness.

Attention, must be devoted principally to raising the workers to the level of revolutionaries; it is not our task to descend to the level of the 'working masses'.