Who said "Hope is vhat distinguishes the living from the dead."?

This quote is attributed to Chekov.

Hope is vhat distinguishes the living from the dead. - Chekov

"Hope is vhat distinguishes the living from the dead."

Chekov Hope

"In Russia, ve have a saying: 'The best time to plant a tree vas twenty years ago. The second best time is now.'"

"Vhat is science vithout the courage to explore the unknown?"

"I have alvays found that friendship requires vork, but it is vork vorth doing."

"The human spirit is remarkably resilient - ve survive vhat ve must endure."

"Every day is a new opportunity."

"Hope is what gets us through difficult times."

"I'm not your enemy, kid. I'm trying to save you."

"Redemption is a long road."