I think my inner voices are pretty good when it comes to warning of trouble. The problem is, I don’t always listen to them. - Charles Sheffield

Professor Lang's important work, with all due respect, does not answer that question." The knife, sliding in hidden behind the compliment. "With all due respect" meant "with no respect at all.

Engineers are dangerous because they’re obsessed by facts and you can’t divert them or buy them off.

The leaders of the Legion of Argos were out-of-this-world mad. Rigid in outlook, intolerant of minor differences. In other centuries they would have led the Inquisition, tortured the heretics, burned the witches.