stiff upper lip
see keep a stiff upper lip.
What’s The Difference Between A Bunny, A Rabbit, And A Hare?The intensely short gestation period and well-known reproductive speed of hares and rabbits have a long cultural association with spring and fertility.
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
Examples from the Web for stiff upper lip
All in all, Bates strikes me as a good upstanding Englishman—the epitome of stiff-upper-lip resolve and restraint.Just Kill Mr. Bates Already! How to Save ‘Downton Abbey’|Andrew Romano|February 20, 2014|DAILY BEAST