There's no such thing as the unknown, only things temporarily hidden, temporarily not understood.
Read more Captain James T. Kirk QuotesFrom: Star Trek Beyond
Commander Spock : When you've lived as many lives as he... fear of death is illogical.Doctor 'Bones' McCoy : Fear of death... is what keeps us alive.
Commander Spock : Fascinating.Doctor 'Bones' McCoy : Ominous. Dark. Dangerous.
Krall : Your captain... why did you sacrifice yourself for him?Lieutenant Uhura : He would have done the same. And if he made it off that ship, he will come for us.Krall : I am counting on it, Lieutenant Uhura.