Preoccupation with efficacy is the main obstacle to a poetic, elegant, robust and heroic life. Nassim Nicholas Taleb
The main obstacle to a stable and just world order is the United States. [This idea] happens to coincide with the prevailing opinion in the world. And I think that's rather shocking for Americans to hear. George Soros
The main obstacle to a stable and just world order is the United States. This is a harsh - indeed, for me, painful - thing to say, but unfortunately I am convinced it is true. George Soros
In Liberia, our main obstacle is infrastructure: the lights, the water, the roads. Companies can't operate without those things. And even though we have commitments from our partners, it takes time to turn commitments into cash. Ellen Johnson Sirleaf
As I said, the North Koreans are arming out of the conviction that the U.S.-South Korean alliance and not the South Korean popular will is the main obstacle in the way of a North-dominated re-unification. Brian Reynolds Myers