Most people have a window of opportunity in their twenties when they have the energy of youth, the ambitions of the ignorant, not much money to lose, no kid to raise, no parent to nurse care, and no real pressure or expectations from society.

Smart people know it's a once-in-a-lifetime chance to take extreme risks: they know they can always rebuild behind no matter how painfully they fail, and they keep trying new things, they keep discovering more about what kind of person they want to be, they keep moving forward with no embarrassment, and whether they actually reach their goals or not, they inevitably build strong foundations for a successful life.