Unknown!

1. “Invest in your dreams. Grind now. Shine later.” ―Unknown
2. “Hustlers don’t sleep, they nap.” ―Unknown
3. “Hustle in silence and let your success make the noise.” ―Unknown

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Why are these three quotes contributed to "unknown" authors?  Two possible reasons ... (1) The individuals who said them probably said them but didn't actually but in the effort to follow their own advice so we will never know who they are because we don't know losers by name, OR (2) These quotes/concepts are so obvious and factual and should be known by anyone strives for success that they can be attributed to a million different successful people.