"He who feels compelled to consider the consequences of these facts cannot but realize that the specific sensibility of nerves for certain impressions is not enough, since all nerves are sensitive to the same cause but react to the same cause in different ways"

This quote by Johannes P. Muller suggests that the sensitivity of nerves to certain impressions is insufficient to discuss the different reactions to the same cause. He is suggesting that there is something more than simply the level of sensitivity of nerves that is accountable for the various reactions. He is suggesting that there is a deeper understanding of the cause and its effects that should be taken into consideration. He is likewise suggesting that we should consider the effects of these truths in order to get a better understanding of the cause and its results. By doing so, we can gain a much better understanding of why different nerves react in a different way to the same cause. Ultimately, this quote is encouraging us to believe more deeply about the domino effects of our actions in order to gain a much better understanding of the world around us.