“In the end, it’s the people who are curious who change the world.”

The universe is almost 14 billion years old, and, wow! Life had no problem starting here on Earth! I think it would be inexcusably egocentric of us to suggest that we’re alone in the universe.

God is an ever-receding pocket of scientific ignorance that’s getting smaller and smaller and smaller as time moves on.

If you want to assert a truth, first make sure it’s not just an opinion that you desperately want to be true.

Part of knowing how to think is knowing how the laws of nature shape the world around us. Without that knowledge, without that capacity to think, you can easily become a victim of people who seek to take advantage of you.

The greatest of people that have ever been in society, they were never versions of someone else. They were themselves.

The good thing about science is that it’s true whether or not you believe in it.

I object to religion in science classrooms not because it’s religion but because it’s not science.

The Universe is under no obligation to make sense to you.

There is no shame in not knowing. The problem arises when irrational thought and attendant behavior fill the vacuum left by ignorance.

If factual information upsets you, then you are creating a world that is not embracing objective truths, and that’s not how you advance a democracy.

If each dead person became a ghost, there’d be more than 100 billion of them haunting us all. Creepy, but cool.

Math is the language of the universe. So the more equations you know, the more you can converse with the cosmos.

My goal is not to shove information into your head. It’s to find ways to reignite the curiosity that we all had as children for the natural world. You don’t have to tell a child to explore the backyard.

Knowing how to think empowers you far beyond those who know only what to think.

God displayed a sense of humor when he configured the region between our legs an entertainment complex built around a sewage system.

If we have the power to turn another planet into Earth, then we have the power to turn Earth back into Earth.

Life is a series of natural and spontaneous changes.

The world as we have created it is a process of our thinking. It cannot be changed without changing our thinking.

In true dialogue, both sides are willing to change.

Especially in technology, we need revolutionary change, not incremental change.

If you accept the expectations of others, especially negative ones, then you never will change the outcome.

Help young people. Help small guys. Because small guys will be big. Young people will have the seeds you bury in their minds, and when they grow up, they will change the world.

We change our tools and then our tools change us.

On every continent, there are girls who will go on to change the world in ways we can only imagine, if only we allow them the freedom to dream.