Science progresses best when observations force us to alter our preconceptions.
Science is competitive, aggressive, demanding. It is also imaginative, inspiring, uplifting.
In a spiral galaxy, the ratio of dark-to-light matter is about a factor of ten. That's probably a good number for the ratio of our ignorance-to-knowledge. We're out of kindergarten, but only in about third grade.
We became astronomers thinking we were studying the universe, and now we learn that we are just studying the 5 or 10 percent that is luminous.
Does Sex Matter? Of course it does. But does it matter enough to Matter? That's a different question.
No observational problem will not be solved by more data.
I guess to me religion is a kind of moral code.
Three of my children married Jewish people. One did not and that marriage didn't last more than half a dozen years or so. The others are still very close.
Religion is not the most important thing.
I decided I needed to give up something, so I gave up teaching.
It's certainly true that most of my close friends are Jewish.
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