Personally, I would be delighted if there were a life after death, especially if it permitted me to continue to learn about this world and others, if it gave me a chance to discover how history turns out.

Science is a way of thinking much more than it is a body of knowledge.

Who are we? We find that we live on an insignificant planet of a humdrum star lost in a galaxy tucked away in some forgotten corner of a universe in which there are far more galaxies than people.

If you wish to make an apple pie from scratch, you must first invent the universe.

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

All of the books in the world contain no more information than is broadcast as video in a single large American city in a single year. Not all bits have equal value.

We've arranged a civilization in which most crucial elements profoundly depend on science and technology.

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.

I've written a number of books that have to do with the evolution of humans, human intelligence, human emotions.

Even these stars, which seem so numerous, are as sand, as dust - or less than dust - in the enormity of the space in which there is nothing.

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

Skeptical scrutiny is the means, in both science and religion, by which deep thoughts can be winnowed from deep nonsense.

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

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

I am often amazed at how much more capability and enthusiasm for science there is among elementary school youngsters than among college students.

The boundary between space and the earth is purely arbitrary. And I'll probably always be interested in this planet - it's my favorite.