"But thought is one thing, the deed is another, and the image of the deed still another: the wheel of causality does not roll between them."

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Things worthwhile generally don’t just happen. Luck is a fact, but should not be a factor. Good luck is what is left over after intelligence and effort have combined at their best. Negligence or indifference are usually reviewed from an unlucky seat. The law of cause and effect and causality both work the same with inexorable exactitudes. Luck is the residue of design.

— Branch Rickey