The nature of a democracy consists to an important degree in the right of the people to criticize problems and mistakes.

We became Homo sapiens not that long ago, from the scientific perspective, and we've retained a lot of our beast nature. We've done all these amazing things in terms of our knowledge base and technology, and now we're flying around and using the Internet. But we're still very animalistic.

The material particle nature of primary cosmic radiation has been confirmed, although the processes turned out to be extraordinarily more complicated than we had assumed.

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