Scientists derive satisfaction from figuring out the puzzle. It's about the quest, not the grail.

The laws of history are as absolute as the laws of physics, and if the probabilities of error are greater, it is only because history does not deal with as many humans as physics does atoms, so that individual variations count for more.

There is a cult of ignorance in the United States, and there has always been. The strain of anti-intellectualism has been a constant thread winding its way through our political and cultural life, nurtured by the false notion that democracy means that "my ignorance is just as good as your knowledge."

To test a perfect theory with imperfect instruments did not impress the Greek philosophers as a valid way to gain knowledge.

So, then, what is style? There are two chief aspects of any piece of writing: 1) what you say and 2) how you say it. The former is "content" and the latter is "style."

The day you stop learning is the day you begin decaying.

I'm an indoors person. I'm not afraid of the outdoors and I penetrate it easily and cheerfully. However, I must admit I like Central Park better than the wilderness, and I like the canyons of Manhattan better than Central Park, and I like the interior of my apartment better than the canyons of Manhattan, and I like my two rooms better with the shades down at all times than with the shades up. I'm not an agoraphobe at all, but I am a claustrophile, if you see the distinction.