Brian Schmidt

Even if I stumble on to the absolute truth of any aspect of the universe, I will not realise my luck and instead will spend my life trying to find flaws in this understanding - such is the role of a scientist.

I think a scientist's job is to explore the Universe, to explore the cosmos around us. People always want to know - why is that useful? Well, on just pure fundamental grounds, on some level it's like art, it's like umm, music, it's aesthetics, it's like philosophy. You want to know where you are in the Universe.