Our children long for realistic maps of the future that they can be proud of. Where are the cartographers of human purpose?

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.

May you let the authentic colors of your heart illuminate and may you feel the light within others.

I have embraced the positive resolution certainly not to entertain any discouragement

As has been pointed out with Libya, the debate over Libya, sometimes we allow diplomatic relations with imperfect regimes because progress can best be made through engagement instead of isolation.

Be a dynamo of irrepressible joy!

That is exactly the writer's problem. What does literature stand for in a hungry world?

Live a "Why not?" life, man. Take the shot. The shot is always worth taking.

Even if your body isn't healthy, your soul overcomes that, it doesn't even care, it worships anyway, its joyful anyway. That's what God wants to give you in your life.

Editors always amputate the brain first and preserve a good-looking corpse.

Essentially 'Flight' is just an adventure of multiple realities.