In the past 30 years, I have lived in different countries, different cities, changed different jobs, learning different majors, I am always looking for that better self, even if the future is unknown to everyone, but everyone still lives harder for the "future", when I return to my hometown again, relatives gradually pass away, from reality person become to ashes, and finally into pictures hanging on the wall for remembrance. All of this made me think, how can we prove that we have been in this world? Past lives are stored by us in photos, memories ... the days we have passed, the paths we have traveled, our memories, how to presented to us in a physical way? Perhaps the shoes we wear can prove every step we have taken in the past.

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