Waste is worse than loss. The time is coming when every person who lays claim to ability will keep the question of waste before him constantly. The scope of thrift is limitless.

There will one day spring from the brain of science a machine or force so fearful in its potentialities, so absolutely terrifying, that even man, the fighter, who will dare torture and death in order to inflict torture and death, will be appalled, and so abandon war forever.

Opportunity is missed by most people because it is dressed in overalls and looks like work.

There is no substitute for hard work.

I have not failed. I've just found 10,000 ways that won't work.