We can trace the elements. They were forged in the centers of high-mass stars that went unstable at the ends of their lives, they exploded, scattered their enriched contents across the galaxy, sprinkled into gas clouds that then collapsed and formed stars and planets and life.

There is no science in this world like physics. Nothing comes close to the precision with which physics enables you to understand the world around you. It's the laws of physics that allow us to say exactly what time the sun is going to rise. What time the eclipse is going to begin. What time the eclipse is going to end.

If you need to invoke your academic pedigree or job title for people to believe what you say, then you need a better argument.

We live in a world where not everyone has the urge to help others... It is OK to encourage others to pull themselves up by the bootstraps, but if you do, just remember that some people have no boots.

There's a lot of memorization that goes on in school. You memorize vocabulary words and all these sorts of things.

No one is dumb who is curious. The people who don't ask questions remain clueless throughout their lives.

It's part of our pop culture to give animals human personalities and talents.