Flexibility is necessary for success.

There is no reason to doubt the fidelity of his story.

The illegality of that act is clear.

Questions were raised about the legality of the act.

This vitamin is water-soluble, so it easily dissolves in water.

This math problem is based on the principle of additivity.

This problem can be solved using the principle of linearity.

It is important to understand the importance of health.

The distinctiveness of this project sets it apart from other projects.

The certainty of this plan's success is high.