Here's the quote with the letters you've asked.
For _ _ t _ _ / _ _ _ _ / t _ _ / t _ _ _ _s / _ _ / _ _ _ _ s / _ _ / t _ _ / s _ _ _ _ _ / _ _ /t _ _ / _ _ _ a _ / a _ _ / t _ _ / _ _ _ _ _ / _ _ / _ _ _ / _ _ / t _ _ / T _ _ / K _ _ _ _ _ _ s / t _at / _ _ _ _ / _ a _ _ / _ _ / _ _ _ _ ata _ / t _ / _ _ _ _ _ / _ _ / A _ _a/ t _ _ / K _ _ _ _ _ _/ _ _/ _ a _t _ /a_ _ _ /t_ _ /
_ _ _ _ _ _ _a _ _ _ /stars.
When and if I'll give another quote I'll take the advice of The Might and make it shorter

but for now you have started to solve this one so I'll leave it.
Good luck!