A pro-teacher slogan. Another way to say it is
those who can, do and those who can't, teach
meaning teachers are not good at what they specialise in so instead of working at it they teach instead
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From @fortune1m
A pro-teacher slogan. Another way to say it is
those who can, do and those who can't, teach
meaning teachers are not good at what they specialise in so instead of working at it they teach instead