“To live in the hearts we leave behind is to live forever.”

Extinction is the rule. Survival is the exception.

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

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

The significance of our lives and our fragile planet is then determined only by our own wisdom and courage.

All civilizations become either spacefaring or extinct.

If we continue to accumulate only power and not wisdom, we will surely destroy ourselves.

Across the sea of space, the stars are other suns.

You are worth about 3 dollars worth in chemicals.

We live on a mote of dust suspended in a sunbeam.

We can judge our progress by the courage of our questions and the depth of our answers, our willingness to embrace what is true rather than what feels good.

For me, it is far better to grasp the Universe as it really is than to persist in delusion, however satisfying and reassuring.

The visions we offer our children shape the future.

Nature is unsentimental. Death is built in.

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.

Being married means I can break wind and eat ice cream in bed.

Some days, all of it aches with beauty.  Others, it all just aches with you.

Don’t get mad. Get everything. – (on divorce).

We have the power to break us and we have the power to heal us.

Baby, I’ve tried, but I can’t unlove you.

The hardest part of leaving is to make it look so easy… isn’t that the unfortunate fuckin truth.

I believe women still face a glass ceiling that must be shattered.

It’s always been hard for me to walk away from people I love when I’ve grown to become reliant on even some of their most harmful traits.