De manumissionibus libri
Ex libro I
Gaius, On Manumissions, Book I. The curator of an insane person can under no circumstances grant freedom to his slave, because this is a matter not included in his administration; for, in disposing of the property of the insane person, he only alienates it where it relates to the management of the affairs of his trust, and therefore, if he alienates any property by way of a donation, the transfer will be of no effect, unless he does this on account of some great advantage it affords the insane person, after an investigation has been made by the court.
Gaius, On Manumissions, Book I. The law provides that even infants are entitled to freedom.
Gaius, On Manumissions, Book I. If a minor manumits a slave for the purpose of making him his guardian: Fufidius says that this should be approved. Nerva, the son, holds the contrary opinion, which is correct. For it would be the height of absurdity for the judgment of a minor to be held to be sufficiently good to enable him to select a guardian, when in every other transaction he is controlled by the authority of his guardian, because his judgment is weak.
Gaius, On Manumissions, Book I. When a slave is given by way of pledge, in general terms, there is no doubt that he belongs to the debtor, and can legally obtain his freedom from him, if this is not prevented by the Lex Ælia Sentia; that is to say, if the owner is solvent, and his creditors do not appear to have been defrauded by his act. 1Where a slave is bequeathed under a condition, he belongs absolutely to the heir while the condition is pending; but he cannot obtain his freedom from him lest injury be done to the legatee.