1 An inch of time is worth an inch of gold, but an inch of gold cannot buy an inch of time.

2 Time flies like an arrow, sun and moon fly by

3 Black-haired people don’t know how to study early, white-haired people regret studying late

4 The deceased is like a husband, reluctant to leave. Day and night

5 People can still walk again, how can they trace back the years

6 Flowers bloom again, and people are no longer young