After World War I, the Allied Powers tried to promote international peace by creating the League of Nations. But the League’s unanimity requirement effectively gave all members veto power, and the United States Senate’s refusal to ratify its Covenant condemned the effort to a premature death.
由此不可避免地可以得出结论：导致在全球重大问题上无法取得进展的正是力求达成绝对共识（一致）的态度。以绝对共识为目标的谈判只有在战胜方和战败方（也就是强者和弱者）的谈判中才可能实现。一次大战后，盟军试图以建立国际联盟的方式来促成国际和平。但国联的一致性要求实际赋予了所有成员国否决权，而美国参议院拒绝批准其《公约》导致那次努力过早陷入夭折。