One Day.

'That was a memorable day to me, for it made great changes in me. But, it is the same with any life. Imagine one selected day struck out of it and think how different its course would have been. Pause, you who read this, and think for a long moment of the long chain of iron or gold, or thorns or flowers, that would never have bound you, but for the formation of the first link on that memorable day.'

Charles Dickens, Great Expectations