The man who acquires the ability to take full possession of his own mind may take possession of anything else to which he is justly entitled.

Steel magnate, philanthropist

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Details

Context

General philosophy of self-mastery

Date / Period

Early 20th Century

Source

https://www.brainyquote.com/quotes/andrew_carnegie_101293

Verification

Confirmed

Explanation

Found in 2 providers: grok,deepseek

Method

Cross Reference

Sources Checked

2 sources

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