"Science goes from question to question; big questions, and little, tentative answers. The questions as they age grow ever broader, the answers are seen to be more limited"

This quote by George Wald speaks to the nature of clinical questions. Science is a process of asking concerns and looking for answers. As scientists ask more questions, the questions end up being more intricate and the answers become more limited. This is because the more questions we ask, the more we understand how much we don't know. Science is a journey of discovery, and as we explore more, we come to understand the intricacy of the world around us. We might never ever have all the answers, however the process of asking concerns and seeking answers is what drives clinical progress.