Daron Rahlves takes risks mainly for change and excitement.
达伦·拉尔维斯冒险主要是为了追求改变与刺激。
2
For example, skier Daron Rahlves says that being afraid makes him try harder to succeed.
例如，滑雪者达伦·拉尔维斯说，恐惧促使他更努力地争取成功。
3
His estimates of per head GDP provide a useful empirical crosscheck for a grand thesis proposed by Daron Acemoglu, Simon Johnson and James Robinson in 2005.