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

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

Just to settle it once and for all: Which came first, the chicken or the egg? The egg, laid by a bird that was not a chicken.

In the animal kingdom, one of the keys to survival is to outwit your enemies. And when you're surrounded by carnivores, one of the best strategies is to fade into the background and disappear.

Claiming there is no other life in the universe is like scooping up some water, looking at the cup and claiming there are no whales in the ocean.

Science literacy is the artery through which the solutions of tomorrow's problems flow.

There are no wild, seedless watermelons. There's no wild cows... You list all the fruit, and all the vegetables, and ask yourself, is there a wild counterpart to this? If there is, it's not as large, it's not as sweet, it's not as juicy, and it has way more seeds in it. We have systematically genetically modified all the foods, the vegetables and animals that we have eaten ever since we cultivated them. It's called artificial selection.