The Jewish bourgeoisie are our enemies, not as Jews but as bourgeoisie. The Jewish worker is our brother.

All extremes are bad. All that is good and useful, if carried to extremes, may become-and beyond a certain limit is bound to become-bad and injurious.

Don't be afraid to admit defeat. Learn from defeat. Do over again more thoroughly, more carefully, and more systematically what you have done badly.

It is more pleasant and useful to go through the 'experience of the revolution' than to write about it.

Sometimes - history needs a push.

During the lifetime of great revolutionaries, the oppressing classes constantly hounded them, received their theories with the most savage malice, the most furious hatred and the most unscrupulous campaigns of lies and slander. After their death, attempts are made to convert them into harmless icons, to canonize them, so to say, and to hallow their names to a certain extent for the “consolation” of the oppressed classes and with the object of duping the latter, while at the same time robbing the revolutionary theory of its substance, blunting its revolutionary edge and vulgarizing it.

The goal of socialism is communism.