Nonviolence is the greatest force at the disposal of mankind.

The true cost of plastic isn't in its production—it's in its afterlife.

The beauty of a well-designed algorithm lies in its simplicity and efficiency.

The most important thing in the Olympic Games is not winning but taking part； the essential thing in life is not conquering but fighting well.

There is no such joy in the tavern as upon the road thereto.

检验统计假设的问题是估计的一般问题中不可分割的一部分。