出自汉·桓宽《盐铁论·申韩》，也有说出自《盐铁论·险固》。有所准备就能制服别人；没有准备只能被别人制服。释义：有准备就能钳制住别人；没有准备就要受别人的钳制。
The question of truth and falsehood is always present, but it is not always answerable.
卡塞尔文献展必须始终是一个问题，而不是一个答案。
The coal research is just as important as the DNA work.