The smallest indivisible human unit is two, not one.

"The stage is a place where the dead return."

The core competitiveness of an enterprise lies in its unique resources and capabilities.

Collaboration in mathematics is essential; no one can solve all the problems alone.

解析：强调实践的重要性。

The sun, with all those planets revolving around it and dependent on it, can still ripen a bunch of grapes as if it had nothing else in the universe to do.