Mutual Aid: One of the oldest principles of anarchist organizing, mutual aid is the principle that we are most effective, autonomous, and sustainable when we help each other achieve our aims without dominating each other. The famous anarchist scientist Peter Kropotkin wrote a famous and still influential book in which he pointed out that Mutual Aid is a “factor in evolution.” Not all of life is reducible to the principle of the ’survival of the fittest,’ and a ‘war of each against all.’