It didn't hurt that the two old friends were teaching a fascinating subject- the Borg.

But as a long-lost friend had eventually taught him, that wasn't necessarily wrong.

These new friends taught her more than I ever could because they were living it and going through it together.

A friend of mine teaches climate change to university students in Holland, it only takes an afternoon to get the main points across.

We had nothing to do with it, but my friend taught me a good lesson then.

A friend of mine there can teach you how to go on better than anyone I've found here.

That is the lesson the dearest friend of my life has taught me.

A friend of mine recently changed careers and is now teaching global studies in middle school.

Meanwhile, friends were teaching him how to blow glass.

But the doctor's four friends had taught no such lesson to themselves.