What I am trying to figure out in my preface is how Romans could operate without the simple items - maps - that are necessary for running such a huge empire.

Even well-known historians like Edward Gibbon are talking about how the soldiers of the 18th century were not able to do the same type of exercise [like Romans].

Solving new problems is what keeps us moving forward as individuals and as a society, so don't back down.

Energy is connected to physical fitness. One of the reasons I stayed at the top so long is that I was tremendously fit. At 36, I was fitter than most opponents ten years younger.

We should simply accept the fact that the way machines make decisions is different, and rather look at the result. If machines are providing results that we are looking for, you would mind how much human understanding was used in the process. And more likely we should look for the way of combining human skills and machine skills. And that, I believe, is the future role of humanity, is just to make sure it will be using this immense power of brute force of calculation for our benefit.

By this measure (on the gap between Fischer & his contemporaries), I consider him the greatest world champion

The Russian Dept of Tourism has declared Ukraine its most dangerous destination. Many Russian tourists have disappeared there.