Singleness of purpose is one of the chief essentials for success in life, no matter what may be one's aim.
Oil magnate
Attributed, often cited in biographies and self-help books
unknown
Found in 2 providers: grok,deepseek
Cross Reference
2 sources
"Success comes from keeping the ears open and the mouth closed."
Strange & Unusual"The man who is always complaining will never achieve anything great."
Strange & Unusual"I would rather earn 1% off of 100 people's efforts than 100% of my own efforts."
Strange & Unusual"I have never met a man who was so ignorant that I couldn’t learn something from him."
Strange & Unusual"I had no ambition to make a fortune. Mere money-making has never been my goal."
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