Who said "From the moment of birth we are immersed in death"?

This quote is attributed to John Keats.

From the moment of birth we are immersed in death - John Keats

"From the moment of birth we are immersed in death"

John Keats Death

Poet English 1795–1821

"A thing of beauty is a joy forever"

"The poetry of the earth is never dead"

"I am certain of nothing but the holiness of the heart's affections"

"Negative capability is when a man is capable of being in uncertainties without irritably reaching for fact"

"Death doesn't scare me anymore."

"Death and I are old friends."

"Welcome to my world."

"Death is just the beginning."