Knowledge without action is madness, and action without knowledge cannot…

Learning needs practice, while action needs understanding to be sound and useful. Al-Ghazali stresses this relationship within moral and spiritual education, rather than praising information gathered for its own sake.

The sentence comes from O My Son, a letter of advice to a disciple. The text explores the gap between accumulating knowledge and living according to what one learns.

The recipient has studied but asks for advice to guide life. The answer therefore brings knowledge and conduct together. The passage’s sharp opposition stresses the gap: possessing information is insufficient, while acting without understanding can also miss its purpose within the text’s perspective.

أيها الولد, رسالة الغزالي إلى أحد تلاميذه

The text appears in the indicated source. A traditional attribution remains distinct from proof of authorship: see the context.

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