To put it more simply, when the book is ready for use, you will regret it. Holding the white paper in both hands, looking at the sky.

An inch of time is worth an inch of gold, and an inch of gold cannot buy an inch of time

Supplement: Among all criticisms, the greatest, most correct, and most genius is time. ——Belinsky Time is a great mentor. ——Burke Time is the soil of all achievements in the world. Time gives pain to dreamers and happiness to creators. ——McKinsey Those who forget today will be forgotten tomorrow. ——Goethe The hard-working bee never has time for sorrow. ——Blake Time is the most impartial, giving twenty-four hours to anyone; time is also partial, giving twenty-four hours to no one. —— Huxley

All savings, in the final analysis, boil down to the saving of time.

——Marx