All happy companies are different: each one earns a monopoly by solving a unique

All happy companies are different: each one earns a monopoly by solving a unique problem. All failed companies are the same: they failed to escape competition. 企业成功的原因各有不同：每个垄断企业都是靠解决一个独一无二的问题获得垄断地位；而企业失败的原因却相同：它们都无法逃脱竞争。