Kao said she cautions against forming any generalizations based on any one of the studies, noting that more background characteristics of the students need to be studied and explained.

To caution people to handle them with care.

That statement comes not, as you might imagine, from a stereotypical tree-hugging, save-the-world greenie ( ' , 環(huán)保主義者), but from Gordon Brown, a politician with a reputation for rigour, thoroughness and above all, caution.

It is proceeding with caution.

But Schweitzer contends the "mounting causal evidence" linking goal-setting and harmful behavior should be studied to help spotlight issues that merit caution and further investigation.

Nonetheless, it's smart to exercise caution .

That statement comes not, as you might imagine, from a stereotypical tree-hugging, save-the-world greenie 環(huán)保主義者, but from Gordon Brown, a politician with a reputation for rigour, thoroughness and above all, caution.