An end to wars, peace among the nations, the cessation of pillaging and violence - such is our ideal, but only bourgeois sophists can seduce the masses with this ideal, if the latter is divorced from a direct and immediate call for revolutionary action.
Vladimir LeninThe whole struggle of our Party (and of the working class movement in Europe generally) must be directed against opportunism. The latter is not a current of opinion, not a tendency; it (opportunism) has now become the organised tool of the bourgeoisie within the working class movement.
Vladimir LeninNo Marxist can deny that the interests of socialism are higher than the interests of the right of nations to self-determination.
Vladimir Lenin