Source: https://chestofbooks.com/business/law/Handbook-Law-Of-Contracts/Sources-Of-Obligation-21-Directly-From-Agreement.html
Timestamp: 2019-04-18 10:15:06+00:00

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Obligation may arise directly from agreement. Here we find that form of agreement which constitutes contract. An offer is made by one person and accepted by another, so that one consents to intend, and the other to expect, the same thing; and the result of this agreement is a legal tie, binding the parties to one another in respect to some future act or forbearance.
Obligation may arise from breach of contract. While one person is under promise to another, the promisee has a right against the promisor to performance of the promise when performance becomes due, and to the maintenance up to that time of the contractual relation. But, if the promisor breaks his promise, the promisee's right to performance has been violated, and, even if the contract is not discharged, a new obligation springs up, - a right of action for damages, similar to that which arises upon a delict or tort. The cause of action results from the breach of contract, and is said to arise ex contractu.
20 Anson, Cont. (4th Ed.) 8; Wade v. Kalbfleisch, 58 N. Y. 282. 17 Am. Rep. 250; Ditson v. Ditson. 4 R. I. 87; Maynard v. Hill, 125 U. S. 190, 8 Sup. Ct 723. 31 L. Ed. 654: Watking v. Watkins, 135 Mass. 83. See "Contracts" Dec. Dig. (Key-No.) § 10; Cent. Dig. §§ 21-40.
21 Anson, Cont. (4th Ed.) 7. 22 Lenke. Cont. 3.
23 City of Chicago v. Pittsburg, C, C. & St L. R. Co., 146 111. App. 403 [affirmed 242 111. 30, 89 N. E. 648]; Leonard v. State, 56 Tex. Cr. R. 307, 120 S. W. 183. And see post, p. 623. Such obligations are also variously called "implied contracts" and "constructive contracts." Harty Bros. & Harty Co. v. Polakow, 237 111. 559, 86 N. E. 1085. See "Contracts," Dec. Dig. (Key-No.) § 5; Cent. Dig. § 7; "Judgment," Dec. Dig. (Key-No.) §§ 2, 3; Cent. Dig.
25 For full discussion of the senses in which the term "implied contract" la used, see HERTZOG v. HERTZOG, 29 Pa. 465, Throckmorton Cas. Contracts, 5; Weinsberg v. St Louis Cordage Co., 135 Mo. App. 553, 116 S. W. 461; Harty Bros. & Harty Co. v. Polakow, 237 111. 559, 86 N. E. 1085. See, also, post, p. 20. See "Contracts," Dec. Dig. (Key-No.) § 4; Cent. Dig. §§ 4-6.

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