One a couple of my favorites from this guy.
Garak: Let me tell you a story. I once knew a Cardassian, a dashing, handsome young man, with a promising career, but one day, through no fault of his own, he found himself exiled and alone with nowhere to turn. But did he give up? No. He struck upon a brilliant plan. Instead of fleeing for the rest of his life, he sought shelter in the one place no one expected him to go: in the stronghold of one of his people's most hated enemies. There, against all odds, against the merciless logic of the universe itself, he thrived.
Ziyal: By becoming the greatest tailor in the galaxy!
Garak: And the moral of the story, my dear, is to never underestimate my gift for survival.
(Bashir tells the story of the boy who cried "Wolf")
Bashir: If you lie all the time, no one is going to believe you, even when you're telling the truth.
Garak: Are you sure that's the point, Doctor?
Bashir: Of course. What else would it be?
Garak: That you should never tell the same lie twice.
