As this got voted down, perhaps some commentary is in order. This quote is from a juggling forum a long time ago, and is in fact about juggling. But I also read it as a parallel of the twelfth virtue of rationality.

The juggler's task is to entertain his audience, and if he fails, it is futile for him to protest that he can do many tricks. It is not enough to master many techniques. They must be used to achieve the result that the techniques aim at.