“Hard to find anything lovelier than a tree. They grow at right angles to a tangent of the nominal sphere of the Earth.”

The more you find out about the world, the more opportunities there are to laugh at it.

The Big Bang banged, and for some reason we’re here. And that’s astonishing. And that we can understand that, that’s the most astonishing.

When we sit down to draw or paint the sun’s rays, we generally use yellow because in the morning and the evening with the blue light scattered away so strongly you’re left with a little bit of red and it comes out yellowish.

Teaching creationism in science class as an alternative to evolution is inappropriate.

I say to the grown-ups, ‘If you want to deny evolution and live in your world that’s completely inconsistent with everything we’ve observed in the universe that’s fine. But don’t make your kids do it.’

I want mechanical engineers to make better transportation systems. I want chemical engineers to develop better solar panels, and so on.

You start doing the addictive behavior to feel good and then your receptors get overloaded with dopamine, then you stop doing the addictive thing and some of the receptors have shut down and you don’t have enough dopamine to feel good.

That’s what makes a human a human, if we store information outside our bodies.

Talk about science with everyone you meet. Especially talk about climate change. It needs to become a part of our everyday conversation (the way it is everywhere else in the world).

One of the drawbacks of English is you can’t spell things by hearing them.

I say to the grownups, if you want to deny evolution and live in your world, that’s completely inconsistent with the world we observe, that’s fine. But don’t make your kids do it. Because we need them.

There are just two people entitled to refer to themselves as “we”; one is the editor and the other is the fellow with a tapeworm.

Educated women have fewer kids. And the kids they do have are better cared for and are more successful. As I like to say, it’s not one thing that we need to focus on. It’s everything all at once.

If you have this idea that the earth is only 6,000 years old, you are denying, if you will, everything that you can touch and see. Youre not paying attention to whats happening in the universe around you.

I understand that you take the Bible, as written in English, translated many many times over the last three millennia as to be a more accurate, more reasonable assessment of the natural laws we see around us than what I and everybody in here can observe. That, to me, is unsettling.

We are part of the process; we are the exquisite result of billions of years of natural research and development.

The issue is not that morals be applied to public policy, it’s that conservatives bring public policy to spheres of our lives where it should not enter.

In should be the duty of every soldier to reflect on the experiences of the past, in the endeavor to discover improvements, in his particular sphere of action, which are practicable in the immediate future.

Private property creates for the individual a sphere in which he is free of the state. It sets limits to the operation of the authoritarian will.

The sovereignty of the state as the power that protects the individual and that defines the mutual relationships among the visible spheres, rises high above them by its right to command and compel.