one and the same
pronEtymology Possibly a calque of Latin unus et idem.
1
Idiomatic The selfsame person or thing. Used to emphasize the identity or equivalence of two things.
- Are the beautiful and the good one and the same?
one and the same
detEtymology Possibly a calque of Latin unus et idem.
1
Idiomatic The selfsame. Used to emphasize the identity or equivalence of two things.
- It's almost as if there's one electron in two places at one and the same time.