Chekhov - The Student -- The "Unbroken Chain"

The old woman had wept, not
because he could tell the story touchingly, but because Peter was
near to her, because her whole being was interested in what was
passing in Peter's soul.

And joy suddenly stirred in his soul, and he even stopped for a
minute to take breath. "The past," he thought, "is linked with
the present by an unbroken chain of events flowing one out of
another." And it seemed to him that he had just seen both ends
of that chain; that when he touched one end the other quivered.