Jack London poured into his writings all the pain of his life, the fierce hatred of the bourgeoisie that it had produced in him, and the conviction it had brought to him that the world could be made a better place to live in if the exploited would rise up and take the management of society out of the hands of the exploiters.
杰克伦敦把他生活中的所有痛苦，中产阶级给他带来的极度痛苦都倾写在他的书里，同时写写出了他的信念：如果被剥削者起来反抗把社会的统治权从剥削者手里拿来，这个世界会变成一个能更好地生活的地方。
