4. When a new movement in art attains a certain fashion, it is advisable to find out what its advocates are aiming at, for, however farfetched and unreasonable their principles may seem today, it is possible that in years to come they may be regarded as normal.
[参考译文] 当艺术领域的一个新运动发展成某种流行时尚时，最好应该弄清这场运动倡导者的真正意图，因为，不管他们的原则在今天看来多么牵强无理，很可能多年以后他们的理论会被视为正常。
5. With regard to Futurist poetry, however, the case is rather difficult, for whatever Futurist poetry may be even admitting that the theory on which it is based may be rightit can hardly be classed as Literature.
[参考译文] 然而就未来主义诗歌来说，情况则不这么简单了
