Zeal without prudence is frenzy.

cygyc... ... Zeal without prudence is frenzy. 热情而不审慎等于狂热。 Zero hour 发动进攻的时刻；决定性的时刻；零点。 ...

... Zeal without prudence is frenzy. 热诚不够谨慎犹若疯狂 Zeal without knowledge is a runaway horse. 热心有余，知识不足 ...