Chinese version: Think three times. Act after.
sān sī ér hòu xíng
三思而后行
Both cultures were smart enough to include this proverb, what with double-edged swords and boats being so tricky.
The term sān sī (三思) means to mull it over or to think again in Chinese, but the plea includes a specific number as the literal definition is “think three times.”
This is a good phrase to use for any friend about to make a big, spontaneous decision, like an elopement in Vegas.