Language is a very important tool as far as any study and reading of learning material is concerned. It's only the written word that's effective for the people who have developed speed reading. Long speeches, anyways have the tendency to put most of us to sleep. Though some people may prefer learning through lectures, light reading is still a better tool. The speed of oral dictations and speeches go as per the whims and style of the speaker which the learner has no control over.
But as far as practical learning is concerned, experience is its only tool. It's a more gradual process requiring courage, patience and grit. In earlier times, knowledge used to be developed only as a result of experience and consequent, trials and errors. In a modern human's life however, this is not the case. He has to learn such things and norms of his interests, his industry, that have already been established in the past by people of learning and influence. Industry thought-leaders may not even exist anymore but the principles and methods given by them are still basically and universally accepted and also, expanded upon. Hence, a modern person has become disconnected from the old and traditional process of learning. But still, practical experience has its paramount importance; though it may be not sufficient, by itself.
The only way to success hence, in today's world is either to expand on the established principles or break them altogether by forming your own, new and better ones. The only necessity being, that your ideas are innovative, enlightening, never done before, out of the box and credible. Then, there are good chances that your mental faculties will achieve breakthroughs for the industry in question and fame for yourself. :-)