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

Somewhere, something incredible is waiting to be known.

It is far better to grasp the universe as it really is than to persist in delusion, however satisfying and reassuring.

The nitrogen in our DNA, the calcium in our teeth, the iron in our blood, the carbon in our apple pies were made in the interiors of collapsing stars. We are made of starstuff.

Imagination will often carry us to worlds that never were. But without it we go nowhere.

I don't want to believe. I want to know.

The absence of evidence is not the evidence of absence.

The brain is like a muscle. When it is in use we feel very good. Understanding is joyous.

We live in a society exquisitely dependent on science and technology, in which hardly anyone knows anything about science and technology.

For small creatures such as we the vastness is bearable only through love.

You have to know the past to understand the present.

If you have to ask, ask for the ability to help others.

Ban short-selling, high speed trading and all other instruments of pure speculation

Her eyes were glistening, but for some reason he couldn't reach out and touch her. It was like some gestures were so simple they were beyond him.

Le Verrier-without leaving his study, without even looking at the sky-had found the unknown planet [Neptune] solely by mathematical calculation, and, as it were, touched it with the tip of his pen!

Funds are low again, hallelujah! That means God trusts us and is willing to leave His reputation in our hands.

Cultivate the habit of early rising. It is unwise to keep the head long on a level with the feet.

Failure is not fun. It can be awful. But living so cautiously that you never fail is worse.

The U.S. engages with North Korea, so I dont see why they cant engage with Iran.

The interesting artists I know are the ones doing political work. The most interesting people I know are the people who care about politics.

Loneliness and darkness have just robbed me of my valuables.