Who said "Death is merely a transition, not an ending."?

This quote is attributed to Ikaris.

Death is merely a transition, not an ending. - Ikaris

"Death is merely a transition, not an ending."

Ikaris Death

"We have watched and guided humanity for thousands of years."

"It is our duty to protect this world, no matter the cost."

"Strength is not measured by how hard you can fight, but by what you choose to protect."

"The universe demands sacrifice from those who would lead it."

"Death doesn't scare me anymore."

"Death and I are old friends."

"Welcome to my world."

"Death is just the beginning."