Haeres est aut jure proprietatis aut jure representationis. An heir is either by right of property or right of representation. 3 Co. 40.

Haeres est alter ispe, et filius est pars¹ patris. An heir is another self, and a son is a part of the father.

Haeres est eadem persona cum antecessore. The heir is the same person with the ancestor. Co. Litt. 22.

Haeres haeredis mei est meus haeres. The heir of my heir is my heir.

Haeres legitimus est quem nuptiae demonstrant. He is the lawful² heir whom the marriage demonstrates.

He who has committed iniquity³, shall not have equity⁴. Francis' Max., Max. 2.

He who will have equity done to him, must do equity to the same person. 4 Bouv. Inst. n. 3723.

Hominum causÖ jus constitutum est. Law is established for the benefit of man.

Id quod nostrum⁵ est, sine facto nostro ad alium transferi non potest. What belongs to us cannot be transferred to another without our consent. Dig. 50, 17, 11. But this must be understood with this qualification, that the government may take property for public use, paying the owner its value. The title to property may also be acquired, with the consent of the owner, by a judgment⁶ of a competent tribunal.

Id certum est quod certum reddi potest. That is certain which may be rendered certain. 1 Bouv. Inst. n. 929; 2 Bl. Com. 143; 4 Kernt com. 462; 4 Pick 179.

Idem agens et patiens esse non potest. One cannot be agent and patient, in the same matter. Jenk. Cent. 40.

Idem est facere, et nolle prohibere cum possis. It is the same thing to do a thing as not to prohibit it when in your power. 3 Co. Inst. 178.

Idem est non probari et non esse; non deficit⁷ jus, sed probatio. What does not appear and what is not is the same; it is not the defect of the law, but the want of proof.