By the way, most of the light that comes from the sun is green.

The Earth is not 6,000 or 10,000 years old. It's not. And if that conflicts with your beliefs, I strongly feel you should question your beliefs.

Winter lingered so long in the lap of Spring that it occasioned a great deal of talk.

The most serious problem facing humankind is climate change.

But investment in space stimulates society, it stimulates it economically, it stimulates it intellectually, and it gives us all passion.

For me, the meaning of life is pretty clear: Living things strive to pass their genes into the future.

As you may know, I am a mechanical engineer.