Instructing Is . . .

Saw this:

"A teacher affects eternity; he can never tell where his influence stops."

Henry Adams
US author, autobiographer, & historian (1838 - 1918)

Reminded me of another, chalked on a blackboard at an instructor training session:

"You are not here to teach, they are here to learn"

Took me a few years to realise the significance of that!