A little late for the answers, sorry.

Part 1: Who Said It?

1– «You drool in you sleep»
Answer: Annabeth

2– «I never wanted to be a half-blood»
Answer: Percy

3– «Love conquers all»
Answer: Aphrodite

4– «Am I a troubled kid?»
Answer: Percy

5– «I foresee the future. I cannot change it»
Answer: The Oracle of Delphi (Rachel is a good answer too, even if I think it's the Oracle of Delphi's mummy who actually said that)

6– «I'm more than just a pretty face»
Answer: Piper

7– «Even strength must bow to wisdom sometimes»
Answer: Annabeth

8– «I try not to think, it interferes with beings nuts»
Answer: Leo

9– «Stars. I can see the stars again, my lady»
Answer: Zoë

10– «If my life is going to mean anything, I have to live it myself»
Answer: Sally Jackson

11– «Love is powerful»
Answer: Aphrodite

12– «The mind of a queen is a thing to fear»
Answer: Reyna

13– «Knowing too much of your future is never a good thing»
Answer: Chiron

14– «Good deeds are always dangerous, boss»
Answer: Blackjack

15– «Genius does not excuse evil»
Answer: Daedalus

16– «Families are messy»
Answer: Hermes

17– «The best medicine for humans is love»
Answer: Will

18– «You say witch like it's a bad thing»
Answer: Hazel

19– «They're not dolls, they're figurines!»
Answer: Nico

20– «That was Hera, her majesty, the loose canon»
Answer: Thalia
(Do you pronounce Thalia 'Talia' or the 'th' part like you pronounce 'the'? Personally I pronounced it 'Talia' but now I have a doubt after hearing them pronounce the 'th' like 'the' in the Percy Jackson series)

Part 2: Finish the Quotes
Answered will be in italic.
Also nobody played this part! I thought it would be easy!

1– «I'm not choosing one of your paths. I'm making my own.»
~Hazel Levesque~

2– «Knowledge can be your greatest weapon»
~Annabeth Chase~

3– «I dream my painting then I paint my dream»
~Rachel Elizabeth Dare~

4– «The more you love the more it hurts»
~Calypso~

5– «Families are messy. Immortal families are eternally messy»

6– «A hero's fate is never happy. It is never anything but tragic»
~Poseidon~

7– «What belongs to the sea returns to the sea»
~A random Nereid~

8– «Where's the glory in repeating what others have done»
~Luke Castellan~

9– «Gods can fade, when everything they stand for is gone»
~Pan~

10– «Don't judge someone until you've stood at his forge and worked with his hammer, eh?»
~Hephaestus~

There you go, hoped you liked it. If you want more, I can make them easier next time.

Only 3 people played so they all are the winners! The grand winner though is @Big_book_girl_24 because she's the one who submitted the most answers and they were all right.

Actually, all of your answers were right.

Yeah, sorry if this was too hard of a game, I'll make it easier next time.