Accepting money from the federal government to conduct research places academic inquiry in the service of national interests.
The people who tried government regulation have lives which are miserable.
We have all kinds of government compensation systems that are much more efficient than the lawyers.
Government proposes, bureaucracy disposes. And the bureaucracy must dispose of government proposals by dumping them on us.
Terrorism can go anywhere where there is not strong government, or government that cannot control its hinterlands.
No government in the world today has explicitly assigned the responsibility for planetary protection to any of its agencies.
I lived at home and I cycled every morning to the railway station to travel by train to Johannesburg followed by a walk to the University, carrying sandwiches for my lunch and returning in the evening the same way.
I've had such a satisfying life professionally and personally. I hope my tombstone says, 'Never boring.'
The surest way to get a thing in this life is to be prepared for doing without it, to the exclusion even of hope.
Happiness comes of the capacity to feel deeply, to enjoy simply, to think freely, to risk life, to be needed.
We are all tourists in history, and irony is what we win in wars.
Meditation while walking has a long, noble history in ancient spiritual disciplines.
History had its own way of explaining things. The way historians explain things is by telling a story.
History's written from what can be found; what isn't saved is lost, sunken and rotted, eaten by earth.
Any suggestion that science and religion are incompatible flies in the face of history, logic, and common sense.
If you only think of me during Black History Month, I must be failing as an educator and as an astrophysicist.
I think feminists are unaware of the tremendous extent of the role of women in history.
My other bodily ailments have become mere matters of history.
I got more mail than anybody on the history of The Today Show, but half of it was to get me off the air.
In summation, like your beloved pet rock, Twitter is useful only in your imagination.
I would have probably stolen cars - it would have given me the same adrenaline rush as racing.