Not all birds can fly. What separates the flyers from the walkers is the ability to take off.

Our concern for the future can be tested by how well we support our libraries.

I'm only a four-dimensional creature. Haven't got a clue how to visualise infinity. Even Einstein hadn't. I know because I asked him

There are many hypotheses in physics of almost comparable brillance and elegance that have been rejected because they did not survive such a confrontation with experiment. In my view, the human condition would be greatly improved if such confrontations and willingness to reject hypotheses were a regular part of our social, political, economic, religious and cultural lives.

If we ruin the earth, there is no place else to go

She had studied the universe all her life, but had overlooked its clearest message: For small creatures such as we the vastness is bearable only through love.

I would suggest that science is, at least in my part, informed worship.