People get knowledge in different ways, and i don't think that quote applies to everyone. It may apply to most people but if you are someone who most of the time thinks outside the box, you will think otherwise. When you think about this quote you can tell it will apply mostly to the people who are more aggressive and outspoken, or extroverts if i may say that. But what happens to the people who are quiet and really don't speak much, will they get out of their shells to ask the questions that they have? Or will they search for answers on their own, especially in this days where we have google all the way, you can get all the answers you need when you need them. We also have Youtube that is open for everyone, so really there are many ways to gain knowledge you don't have to stick to asking questions only. Just be open minded use your ears, eyes, mind whatever else you have to learn.