No man is worth his salt who is not ready at all times to risk his well-being, to risk his body, to risk his life, in a great cause.Theodore Roosevelt
Standing in the middle of the road is very dangerous; you get knocked down by the traffic from both sides.Margaret Thatcher
Exploration is an oft-lauded human activity, and one that resonates in the same way that music and good stories do. It's hard-wired into our species (and into many others), no doubt because it has survival value. Exploration occasionally rewards those who accept its risks, usually with new resources.Seth Shostak