"There is no basis for the ardent hopes and positive statements made as to the safe and successful use of the dirigible balloon or flying machine, or both, for commercial transportation or as weapons of war."

Next Quote

Even the most ardent environmentalist doesn't really want to stop pollution. If he thinks about it, and doesn't just talk about it, he wants to have the right amount of pollution. We can't really afford to eliminate it - not without abandoning all the benefits of technology that we not only enjoy but on which we depend.

— Milton Friedman