“关于必然和自由的问题——这个旧的、然而永远是新的问题”,摆在历史上一切哲学家面前,就如思维和存在之间的关系问题摆在所有哲学家面前一样。“这个问题,……向每个这样的思想家说,请你解开我这个谜,否则我便吃掉你的体系”,也向每个社会实践家说,请你正确地解决这个问题,否则我便让你到处碰壁。因此,探讨必然 “The question of necessity and freedom - the old, but always new,” is placed before all philosophers in history as the question of the relationship between thought and existence lies before all philosophers. “This question, ... to each of these thinkers, would you please unlearn my mystery or I would have eaten your system?” To each social practitioner, please correct the question, otherwise I let you run into trouble. Therefore, the exploration is inevitable