3. Apices juris non sunt jura.

10 Co. Rep. 126. Cf. D. 17. 1. 29. 4: Non congruit de apicibus juris disputare.

Legal principles must not be carried to their most extreme consequences, regardless of equity and good sense. A principle valid within certain limits becomes false when applied beyond these limits. The law must avoid the falsehood of extremes. See § 10.