SF isn't a genre; SF is the matrix in which genres are embedded, and because the SF field is never going in any one direction at any one time, there is hardly a way to cut it off.

The witnessing of titanic events is always dangerous, usually painful, and often fatal.

The Product of Freedom and Security is a constant (F X S = k). Giving up freedom for security is beginning to look naive.

In hindsight it may even seem inevitable that a socialist society will starve when it runs out of capitalists.

One mark of a good officer, he remembered, was the ability to make quick decisions. If they happen to be right, so much the better.

It is a cardinal sin to bore the reader.

My problem with new writers is that it takes me five or six years to memorise the right names.