In Texas & Pacific Railway Company v. Marlor, the Supreme Court of the United States was asked to decide whether a railroad company was liable for damages caused by a train accident. The plaintiff, Marlor, was a passenger on the train when it collided with another train, resulting in serious injuries. Marlor sued the railroad company, claiming that the company was negligent in its operation of the train. The Supreme Court held that the railroad company was liable for Marlor's injuries. The Court found that the company had failed to exercise reasonable care in operating the train, and that this negligence was the proximate cause of Marlor's injuries. The Court also held that the company was liable for the full amount of Marlor's damages, including medical expenses, lost wages, and pain and suffering. The Court's decision in this case established that railroad companies are liable for damages caused by their negligence. This decision has been cited in numerous subsequent cases, and has been used to establish the principle that companies must exercise reasonable care in their operations in order to avoid liability for damages caused by their negligence.

Justice Field delivered the dissenting opinion in Texas & Pacific Railway Company v. Marlor, arguing that the majority's decision was incorrect and should be reversed. He argued that under the law of Louisiana, where this case arose, a railroad company had an obligation to maintain its tracks in a safe condition for public use and could not escape liability by claiming it did not have actual knowledge of any defect or danger on its property. Justice Field further noted that if there were no such duty imposed upon railroads then they would be free from all responsibility for their negligence even when it caused injury to passengers or others lawfully using their roads. The dissent concluded by stating that while he agreed with much of what was said in the majority opinion regarding contributory negligence, he believed it should not apply here because Marlor had no reasonable way to discover or guard against any defects on the track before her accident occurred.