Who said "Hope is a luxury we can no longer afford."?

This quote is attributed to Ye Wenjie.

Hope is a luxury we can no longer afford. - Ye Wenjie

"Hope is a luxury we can no longer afford."

Ye Wenjie

Character in The Three-Body Problem

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"The end of childhood is the beginning of sorrow."

"Darkness is coming, and all light will be extinguished."

"Technology is a double-edged sword that cuts both ways."

"Our species' arrogance may be our undoing."