"It was the best of times, it was the worst of times" Dickens. This sentence should be very famous, but when I first saw it, I didn’t understand its meaning at all. In fact, I still haven’t read A Tale of Two Cities. It touched me deeply because I couldn't understand this sentence at all before, until it suddenly popped into my head some time ago. At that time, an idea came to my mind, yes, compared to ancient times, this is the best era. Compared to the future, this is the worst era, and I was suddenly shocked to realize the brilliance of this sentence.