Pieces of your heart broke every day when you were a mother.

...we're not eighteen anymore. We've lived. We've created things that last – things of joy, and things of burden.

Some wounds were worth bearing for the healing they brought.

We were immortal, did you know that? Did you feel it like me? We had the world at our feet and we were going to live forever. Then came life – growing inside you – and I became mortal.

It certainly is a puzzle.” He turned back to the broken road. “But sometimes to find the answer, you have to take a leap of faith.

Endings bring new beginnings. Love has many truths. And knights come in all colours.

Water in, water out until there is no water to run and the riverbed runs dry. That's life

To experience biophilia is to love a diversity that, as limitless as it is fragile, both haunts us and fills us with hope.

I'm often asked by parents what advice can I give them to help get kids interested in science? And I have only one bit of advice. Get out of their way. Kids are born curious. Period.

It's sad that some people who have one exciting moment spend the rest of their lives rehashing it.

Death has but one terror, that it has no tomorrow.

Where does a wise man hide a leaf? In the forest. But what does he do if there is no forest? He grows a forest to hide it in.

While our energy efficiency is improving, there is a very high correlation, almost near perfect correlation, between GDP growth, and energy usage.

...there are people who added goodness to the world and people who lived to destroy it.

It's not realistic to live in the country at this stage. I've got a business in London. I beat myself up about it all the time.

We never left a set until we'd trashed it.