Tomorrow is always another day to face new challenges, which derived from small blocks such as seeking ways to solve unfamiliar Math problems to dealing interpersonal relationships with co-workers and higher-ups. Impediments sometimes make our stuff-with-challenge life messy; however, a glimpse of perspectives from the past improves our situations in present.
First of all, studying from the past sets the stage for an easier life. In other words, past experiences let us save troubles and get experiences which help improve problems. For example, Tomas Edison, a person with larger-than-life personality, traveled through more than 1000 trails and failures before he could finally invent the groundbreaking light bulbs which have lightened the whole world ever since. It is from his previous work that the invention of light bulbs could improve a little every time he took up another try. And it is his drawing on the experiences of past failures that paved the road for his success.
Furthermore, past histories help to trace the cause of the phenomenon happened in the present. That is past let us better understand the present. At the sight of history, the block of the drainage systems on streets and flee ways caused the repairing and improving of those systems; the reduction selling of out of fashion mobile phones provokes the innovations of designs and functions in order to be competitive; the ignominy of dynasty's corruption stimulated the reform and opening-up policy to avoid recommit the same error. The echoes of past still resonate and influence on the instant. Also, past is an integral part of our history. Our ancestors painstakingly not record almost all the significances in history for nothing; carrying on the history is our duty and we are also obligated to pass on to our offspring.
Our lives are not so perfect; they are built up with various difficulties. Studying from the past help to improve and evolve from the situations happened nowadays. Since it is of great benefit to get experiences from the past, it is necessary to learn from it.