Tygers & Horses

"The tygers of wrath are wiser than the horses of instruction" said William Blake in The Marriage of Heaven and Hell, and on lots of European walls in the 60s, and under the cover of an Eighth Doctor Adventure by Kate Orman.

I disagree.  I think you need the horses of instruction just as much as you need the tygers of wrath.  The thing about the tygers is that they chase you.  The thing about the horses is that you have to chase them.  If you've got a horse ahead of you and a tyger behind... well, that's not comfortable, but it's the better way round.  It gives you both a strong impetus and a goal.

Of course, horses can be wild and tygers can be calm.

I'll stop there.  All analogies can be pushed to breaking point.  Even the ones invented by geniuses.