Who said "I have to stay alive. That's the mission."?

This quote is attributed to Ryland Grace.

I have to stay alive. That's the mission. - Ryland Grace

"I have to stay alive. That's the mission."

Ryland Grace

Character in Project Hail Mary

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"I'm not stranded. I'm home."

"Science rules."

"Sometimes the only way out is through."

"Every problem has a solution if you think about it long enough."