Let others lead small lives, but not you. Let others argue over small things, but not you. Let others cry over small hurts, but not you. Let others leave their future in someone else's hands, but not you.
We are the only beings on the planet who lead such rich internal lives that it's not the events that matter most to us, but rather, it's how we interpret those events that will determine how we think about ourselves and how we will act in the future.
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.
The doctor of the future will give no medicine but will instruct his patient in the care of the human frame, in diet and in the cause and prevention of disease. They may even discover the germ of old age.