He taught that the pursuit of pleasure is the end-all and be-all of morality...

He taught that the pursuit of pleasure is the end-all and be-all of morality, but emphasized that the genuine life of pleasure must be a life of prudence, honor, and justice. In natural philosophy he adopted the atomistic theory of Democritus (Dimiqratis, q.v.) and accepted the view that the element of chance or deviation occurs in the otherwise straight motion of atoms. Abiquriyah Epicureanism, the school of thought, mainly ethical, as founded by by Epicurus (Abiqurus, q.v.).

It is noteworthy that contrary to the usual meaning of the word in English, Epicureanism on the whole inculcates simplicity of life: the fewer the desires, the better it is; for a greater number of desires is likely to bring greater dissatisfaction which one ought to avoid at all costs. Though like Cyrenaics (Qaurniyah, q.v.) Epicurus regarded pleasure or happiness as the end of life, unlike them he preferred the lasting pleasures of the mind to the immediate pleasures of the body.

Prudence, honor, and justice for him were the cardinal virtues. He also gave high place to friendship and taught that one should not fear death for "death does not yet exist." He even adopted Democritean atomism for moral reasons; it abolished, according to him, all superstitious fears of death and punishment in hereafter.

ittihad fi’ l-idafah, also called ittihad fi’ l-nisbah Union by relation, said of two or more pairs of things when the terms or parts of each pair have the same relation or ratio as the terms or parts of the other pair, e.g. the relation individually of two brothers to their father or the relation of ratio 2 : 4 to the ration 3 : 6 ; the relation between such pairs is technically called that of munasabah (q.v.).

ittihad fi’ l-jins Union by genus, said of two or more things when they belong to the same genus, e.g. man and horse belonging to the genus animal; relation between them is technically called to be that of mujanasah (q.v.). ittihad fi’ l-khassah Union by property (proprium), said of two or more things when they have a common property, e.g. triangles of all kinds have the sum of their two sides greater than the third; this relation between them is technically called that of mushakalah (q.v.).

ittihad fi’ l-kamm Union by quantity, said of two or more things when they are of equal quantity, e.g.