Last but not least One Piece is often a ideal source for inspiration and drive, the concept of "never ever quit on the desires regardless of the the price is" gets the good expression in this article. Each character of one piece whether or not it's protagonists or antagonists have their own personal believes, feeling of justice and vision of the planet for which they combat for putting them on high stakes.
Ussop birthday here is on April one, that is April fools working day. This is quite fitting thinking of his power to fool people.