Keep one's cool

All week long I've been keepin' my cool / But tonight I'm gonna let my hair down / And get down with these down home blues

In the heat of the afternoon, while Roger Clemens threw a temper tantrum and the Boston Red Sox became unraveled, Dave Stewart kept his cool.

Fighting back panic, she tried to keep her cool and find a way out from under the rubble.

Taiwan’s president told the self-ruled island’s military units Tuesday to keep their cool in the face of daily warplane flights and warship maneuvers by rival China, saying that Taiwan will not allow Beijing to provoke a conflict.