The source of wisdom, the past and the present

Although society is constantly progressing and the times are changing, the past will always repeat itself in different ways, and history will always reappear in different forms. What we are going through or will experience in the future is nothing more than a repetition of the old stories of our ancestors. Therefore, there is nothing new under the sun, do not know the past, only know the present, can not predict the future.

We must be good at learning and summarizing, and melt the past experience that others have exchanged for blood and tears into our own wisdom.