The greatest obstacle to being heroic is the doubt whether one may not be going to prove one's self a fool; the truest heroism is to resist the doubt, and the profoundest wisdom to know when it ought to be resisted, and when it be obeyed.

乳制品生产中的每一个挑战都是创新的机会。

The only thing necessary for the triumph of evil is for good men to do nothing.