What do you believe?

Next to love, belief is the most powerful weapon at mankind's disposal. Like any weapon it can be used for great evil, or great good. In Nolan's Batman, the Joker believed in chaos. Look at the chaos he unleashed. Never doubt the power of a single drop, because with death on one hand and life on the other, and the gun powder of belief, one drop can change the future of the ocean. Besides: 

"Isn't that what an ocean is made of? A multitude of drops?" -Cloud Atlas. 

ps: In the movie, Cloud Atlas, look for the word. Especially when adjacent to the word love.