Forbes v. Gracey is a United States Supreme Court case that dealt with the issue of whether a contract between two parties was valid. The case involved a dispute between two parties, Forbes and Gracey, over a contract for the sale of a tract of land. Gracey had agreed to purchase the land from Forbes for a certain sum of money, but Forbes later refused to accept the payment and refused to transfer the land. Gracey then sued Forbes for breach of contract. The Supreme Court held that the contract between the two parties was valid and enforceable. The Court found that the contract was supported by consideration, meaning that both parties had given something of value in exchange for the other's promise. The Court also found that the contract was not void for lack of consideration, as Forbes had argued. The Court held that the contract was binding and enforceable, and that Forbes was liable for breach of contract. In conclusion, the Supreme Court held that the contract between Forbes and Gracey was valid and enforceable, and that Forbes was liable for breach of contract. The Court's decision established that consideration is necessary for a contract to be valid and enforceable, and that a contract cannot be voided for lack of consideration.

In the case of Forbes v. Gracey, the Supreme Court was tasked with determining whether a contract between two parties could be enforced even if it violated state law. The majority opinion found that such contracts were not enforceable and thus dismissed the plaintiff's claim. However, Justice Field dissented from this decision on the grounds that enforcing such contracts would not violate public policy or any other principle of justice and equity as long as they did not conflict with federal laws or treaties. He argued that since no federal statute prohibited these types of agreements, then there should be no legal impediment to their enforcement in court. Furthermore, he noted that allowing them to stand would promote fairness among contracting parties by ensuring both sides are held accountable for their promises under contract law principles rather than being able to escape liability through technicalities related to state statutes which may have been enacted after an agreement had already been made in good faith by both parties involved.