" Our best intentions are often thwarted by external forces—forces that we ourselves set in motion long ago. Decisions, especially bad ones, create their own kind of momentum, and momentum can be a bitch to stop, as every athlete knows. Even when we vow to change, even when we sorrow and atone for our mistakes, the momentum of our past keeps carrying us down the wrong road. Momentum rules the world. Momentum says: Hold on, not so fast, I’m still running things here. As a friend likes to say, quoting an old Greek poem: The minds of the everlasting gods are not changed suddenly. "

― Andre Agassi , Open