[Referring to Herbert Hoover:] That man has offered me unsolicited advice for six years—all of it bad.
No vice is so bad as advice.
There is nothing more hateful than bad advice.
Good advice is often annoying, bad advice never.
Worst advice? I either don't remember it or I've been very lucky in terms of getting good advice.
We all have the temptation to be backseat drivers when it comes to decisions that don't work out the way we want.
I have received more advice than any man living—mostly bad.
To the counsel of fools a wooden bell.
Those who cannot help ought also not advise: in an order where every mousehole has been plugged, mere advice exactly equals condemnation.
I know how irritating it is when a producer puts his hand in everything.
No enemy is worse than bad advice.
People always want to give you advice about parenting. People who you've never met before will tell you you're doing something wrong. And it's quite similar in writing. People forget that you're a human; they just want to give you their advice.
Go not to the Elves for counsel, for they will say both no and yes.