mustn't

"While a fall in bills will always be welcomed by households, we mustn't get ahead of ourselves. We have all seen markets go up as fast as they go down, and the very fact the market dropped so quickly shows how vulnerable it is to geopolitical and market shifts," said Craig Lowrey, principal consultant at Cornwall Insight, which is widely recognised for the accuracy of its predictions.

As difficult as that can be, we mustn’t give up just because being a progressive person in America often seems more challenging than it's ever been.

She continued, “This is it, and we mustn’t, for a moment, kid ourselves about what’s happening. This is big-time serious, folks. So let’s be brave. This is a good time for a little Norma Rae, Karen Silkwood, or Tom Joad. We must not isolate. We must stay in community. We must help the vulnerable. We must find ways to project an inspiring vision of the future.”

"On the one hand, we must save a patient. On the other – we mustn't breed new microorganisms that will have antimicrobial resistance."

"We mustn't be afraid to confront it again."