Haha, I don't really have motivational quotes, but rather motivational verses. Anyways, two of my favorites are in my sig and I just figured I'd go into a little more detail about them. These verses help me stay confident in myself despite the naysayers. Sorry if it gets long.
"Product of determination, the one who made it through like the sperm that made him, he represents strength like the Black mom who didn't terminate him, but in turn gave him her all.
Now he's discussed in barber shop back rooms, online chatrooms, and in the bathroom on the wall.
Recall, he came from the bottom but the talent God gave him got him by, yall can hate but that only makes him stronger." ~ Jay-Z
"I'm just trying to be me, because there's only one me, strip away the materials I'm serious,
See these things don't make me, nothing can break me, I shine because a star is inside of me...
I'm feeling myself homie what, see I'm a leader you won't show me up... naaah
See they won't slow me down, won't slow me up,
the sky is the limit until I die and I'm in it...
So don't be afraid to show the world who you are,
Go and show the world you're a star,
Reach to the stars go ahead and show the world that it's ours, and then the world will know that a star is inside of me." ~ Joe Budden