When I was in middle school, I had a classmate who would look at trigonometric functions and yell, "I will never need these!" ...

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Self-control—or the ability to manage one's impulses, emotions, and behaviors to achieve long-term goals—is what separates humans from the rest of the animal kingdom. Self-control is primarily rooted ...

Julia Kagan is a financial/consumer journalist and former senior editor, personal finance, of Investopedia. David is comprehensively experienced in many facets of financial and legal research and ...

Pete Rathburn is a copy editor and fact-checker with expertise in economics and personal finance and over twenty years of experience in the classroom. d3sign / Getty Images A blockchain is a secure ...