Optimism is one thing, but hubris that the world economy is returning to normal could hinder recovery and block policies to protect against a further plunge into the depths.

• 乐观并无毛病，但这种以为世界经济已然恢复正常的狂妄自大很可能阻碍复苏以及那些可以防止经济进一步陷入深渊的政策措施的执行。