The fact that no one understands you doesn't mean you're an artist.

So great a contribution to physics was Two New Sciences that scholars have long maintained that the book anticipated Isaac Newton's laws of motion.

Gravity is so strong that space is bent round onto itself, making it rather like the surface of the earth. If one keeps traveling in a certain direction on the surface of the earth, one never comes up against an impassable barrier or falls over the edge, but eventually comes back to where one started.

The doctor who diagnosed me with ALS, or motor neuron disease, told me that it would kill me in two or three years.

The fact that no one understands you doesn't mean you're an artist.

One could imagine such technology outsmarting financial markets, out-inventing human researchers, out-manipulating human leaders, and developing weapons we cannot even understand.

I have noticed even people who claim everything is predestined, and that we can do nothing to change it, look before they cross the road.