ci ve ▁to ▁health ▁rather ▁than ▁disease . ▁ ▁There ▁is ▁another ▁one ▁... ▁the ▁need ▁of ▁people ▁for ▁a ▁bread th ▁and ▁divers ity ▁of ▁purs uit ▁and ▁hence ▁of ▁personal ▁development , ▁as ▁Marx ▁himself ▁express es ▁these , ▁' all - round ▁activity ', ▁' all - round ▁development ▁of ▁individuals ', ▁' free ▁development ▁of ▁individuals ', ▁' the ▁means ▁of ▁cultiv ating ▁[ one ' s ] ▁g ifts ▁in ▁all ▁directions ', ▁and ▁so ▁on . ▁▁ ▁Marx ▁says ▁' It ▁is ▁true ▁that ▁e ating , ▁drink ing , ▁and ▁pro cre ating , ▁etc ., ▁are ▁... ▁genu ine ▁human ▁functions . ▁However , ▁when ▁abstract ed ▁from ▁other ▁aspects ▁of ▁human ▁activity , ▁and ▁turned ▁into ▁final ▁and ▁exclusive ▁ends , ▁they ▁are ▁animal .' ▁ ▁Product ive ▁activity , ▁the ▁objects ▁of ▁humans ▁and ▁actual isation ▁ ▁Hum ans ▁as ▁free , ▁pur pos ive ▁produ cers ▁In ▁several ▁pass ages ▁throughout ▁his ▁work , ▁Marx ▁shows ▁how ▁he ▁bel ieves ▁humans ▁to ▁be ▁essentially ▁different ▁from ▁other ▁animals . ▁' Men ▁can ▁be ▁distinguished ▁from ▁animals ▁by ▁conscious ness , ▁by ▁religion ▁or ▁anything ▁else ▁you ▁like . ▁They ▁themselves ▁begin ▁to ▁distinguish ▁themselves ▁from ▁animals ▁as ▁soon ▁as ▁they ▁begin ▁to ▁produce ▁their ▁means ▁of ▁subs istence , ▁a ▁step ▁which ▁is ▁condition ed ▁by ▁their ▁physical ▁organisation .' ▁In ▁this ▁passage ▁from ▁The ▁German ▁Ide ology , ▁Marx ▁all udes ▁to ▁one ▁difference : ▁that ▁humans ▁produce ▁their ▁physical ▁environments