“An atheist is someone who is certain that God does not exist, someone who has compelling evidence against the existence of God.”

We are star stuff which has taken its destiny into its own hands.

Not explaining science seems to me perverse. When you’re in love, you want to tell the world.

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

Nature is always more subtle, more intricate, more elegant than what we are able to imagine.

When we look up at night and view the stars, everything we see is shinning because of distant nuclear fusion.

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

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.

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

The Earth is a very small stage in a vast cosmic arena.

Except in pure mathematics, nothing is known for certain (although much is certainly false).

Every kid starts out as a natural-born scientist, and then we beat it out of them. A few trickle through the system with their wonder and enthusiasm for science intact.

One of the greatest gifts adults can give – to their offspring and to their society – is to read to children.

I’ve always thought an agnostic is an atheist without the courage of his convictions.

Perhaps the depth of love can be calibrated by the number of different selves that are actively involved in a given relationship.

What an astonishing thing a book is.

We all have a thirst for wonder. It’s a deeply human quality. Science and religion are both bound up with it.

The attacks inside Israel are operations we carry out in response to Israeli crimes against our people.

I, too, am against the dismantlement of Iran.

There is no way the Americans are going to be able to carry out a full scale war against Iraq and at the same time maintain the same kind of pressure on the Al Qaeda network in countries as diverse as Indonesia, Philippines, and Pakistan, as well as in Europe.

If you’re rational and logical, they argue their case rationally and logically. If you’re loyal and faithful, they turn those against you.

Your weak weaknesses are no use to them…. They find the strongest weaknesses you didn’t know were yours and use those against you.

The fight against corruption is successful if you prevent corruption taking place in the first place.

Not because Iraq will be an aggressive state against them, but rather by the example that will be set by a successful federal democratic state in Iraq.

The battle against terrorism is not only a military fight but primarily a battle of information.