Orison Swett Marden：Pushing to the Front, Excerpt 365

Man's faculties and functions are so interrelated that whatever affects one affects all. Athletes who over-develop the muscular system do so at the expense of the physical, mental, and moral well-being. It is a law of nature that the overdevelopment of any function or faculty, forcing or straining it, tends not only to ruin it, but also to cause injurious reactions on every other faculty and function.

Source： https://www.gutenberg.org/ebooks/21291
Locator：Excerpt 365 · Verified：2026-10-19 · Verification：Short excerpt

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