Zeal without prudence is frenzy
热情而不审慎等于狂热
Zeal should not outrun discretion
热情不应压倒谨慎
chant ... with solemn fervor
悲吟
revolutionary fervor
革命热情
zeal for public welfare
对公共福利的热心
arouse sb.s’ revolutionary fervor
激发某人的革命热情
zeal for modern systematic management
热心于现代的系统管理
speak with fervor and assurance
侃侃而谈
Full of patriotic fervor
满腔热血