Who said "Death is not the end; it's a transition."?

This quote is attributed to Leonard McCoy (New Timeline).

Death is not the end; it's a transition. - Leonard McCoy (New Timeline)

"Death is not the end; it's a transition."

Leonard McCoy (New Timeline) Death

"I'm a doctor, not a magician."

"Life is too short to waste on regrets."

"The needs of the many outweigh the needs of the few, but that doesn't mean we stop caring about the individual."

"Fear is what keeps us alive. Fear and respect."

"Death doesn't scare me anymore."

"Death and I are old friends."

"Welcome to my world."

"Death is just the beginning."