Life is for living, we all know.

The key to understanding human cognition is to understand how symbols are manipulated.

The present state of the system of nature is evidently a resultant of what it was in the preceding moment, and if we conceive of an intelligence which at a given instant comprehends all the relations of the entities of this universe, it could state the respective positions, motions, and general effects of all these entities at any time in the past or future.

New energy is not only the direction of industrial upgrading but also an important part of national strategy.