If the broom flies...

If the broom flies, ride it.

Looking at this quote, anyone can see its proverbial meaning. This is something that your mind automatically interprets, immediately ignoring the possible practical value and instead moving on to a way one can apply it in their daily life. Because of this, when you do discover a flying broom someday, this quote will be far from your mind and you may even walk away from the opportunity to ride it.
However, the possible practical value is undeniable. When one finds a flying broom, they will be so taken by amazement that their mind may be muddled, and unable to form logical thoughts. Thus, they may end up choosing to do the wrong thing with it, such as running away screaming as opposed to riding off into the sunset. So this quotation is clearly applicable as short and simple reminder, an infallible piece of advice in the event of such an encounter and logic fails to prevail.

There are, of course, several dangers to riding this broom. For example, it may take you to a place of danger, or it may simply buck you off, the way the cursed broom in Harry Potter did. This broom can kill you, and that will certainly be a factor in your course of action if you did not have this advice. But truth be told, you will most certainly regret not trying that broom out. So what if you die from trying to ride this magical broom? How many people get to ride a broom before they die? The odds of such an occurrence is astronomical, and such a chance cannot be passed up or you shall surely go mad with the deep, abiding hatred at yourself for not testing it out. Die on the broom, and die in peace.

Also, who knows if this ride will be fatal or not? Surely you don't. Of course you don't, you have never ridden a broom. So you may not die. You may become the master of the broom, and now you have a nifty form of transportation, as well an excellent brusher of floors.

Also, careful not to sit on Dumblydore's face. He won't like that.