"Just as a physician who prescribes many drugs for his patients deserves less praise than the one who succeeds in helping them with a few, so the philosopher who teaches his pupils with the use of many proofs is less effective than the one who leads them to the desired goal with a few." Musonius
If you are lost and need to ask for directions to go to a specific place, would you prefer a local person to tell you the shortest route to get there, or would you prefer that he tell you many ways of getting there? Life is like a map without showing you where you are, and without showing you how to arrive at your destination once you have decided where you want to go. Philosophy is like a guide who can help you identify the landmarks to ascertain where you are, and then provide you a compass to ensure you are heading in the right direction. You would still need to walk, but each step is progress and has purpose. Unless you choose to, you need not waste one minute by going south when your aim is toward the north.
A tree that produces many fruits aren't always better. Some of them might be inedible or rotting. A tree that is good produces only good fruits. There is no additional labor necessary to separate them from the bad fruits. And although these good fruits might be rare and few, they can command the highest prices. Likewise, succinctness in words is a virtue and is valuable. It takes much greater skill to make complicated things simple than to make simple things complicated. What an emperor wouldn't give for a military general who can convey quick and clear orders to one thousand soldiers and they understand him instantly and perfectly as a result.
When many explanations are offered instead of the appropriate ones for a difficult matter, they don't help those who are perceptive because they would be able to understand it immediately if given simply one good explanation. Furthermore, many explanations don't necessarily help those who are obtuse because they would be baffled by the sheer amount of different explanations for one matter.
Thus, in order to successfully explain a difficult matter, it would be more fitting to only use the plainest and most obvious explanation. And should that be insufficient for those who are still uncertain, then offer the next best explanation. This is analogous to trying to give a hungry person the right amount to eat, and adjusting later if necessary, instead of giving him everything you have available. That would be a waste and risk him choking on the excessive offering.
From a student's perspective, it is your duty to pay attention to what is being taught, not because you need to digest everything you hear, but to be vigilant and ensure you don't fall for things that are often false. Be careful and selective in what you believe is true. When you have accepted an idea is indeed true, then be certain that it wasn't due to a vast number of inferior proofs but rather one or few cogent, irrefutable proofs. But you don't stop there. You would need to continue further by trying to apply and test that idea to your daily life. For only in this way will philosophy be beneficial for you. As such, I will only teach ideas that are in harmony with my conduct.
There are only a few things that make me happier than to uncover and share ideas that are relevant, timely, alive -- and one of those few things is sharing them with you, Epictetus.
"Do not tell people what they should do when you do what you should not." Musonius