居安思危

jū ān sī wēi

to prepare for danger in times of peace

Character by character

居jū
living

安ān
safe

思sī
think

危wēi
danger

公司现在发展得好，更要居安思危。

The company is doing well, which is exactly when we must stay alert.

Tone: positive (praise).

A staple of leaders' speeches.

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