ないものはない

Also written 無い物は無い

Meanings

1. Expression there's nothing we (I, he, she, etc.) don't have
2. Expression, い-adjective nonexistent; not in one's possession; we (I, he, she, etc.) don't have what we don't have (emphatic form of ない) See also: 亡い (ない).

Jinuma: Japanese Dictionary · Word lists