Zeal without knowledge is fire without light.

Zeal without knowledge is fire without light.

Zeal is fit for wise men, but flourishes chiefly among fools.

Zeal is fit for wise men, but flourishes chiefly among fools.

Zeal is a volcano, the peak of which the grass of indecisiveness does not grow.

Zeal is a volcano, the peak of which the grass of indecisiveness does not grow.

Blind zeal can only do harm.

Blind zeal can only do harm.

For zeal's a dreadful termagant,
That teaches saints to tear and cant.

For zeal's a dreadful termagant,
That teaches saints to tear and cant.

Zeal is very blind, or badly regulated, when it encroaches upon the rights of others

Zeal is very blind, or badly regulated, when it encroaches upon the rights of others

Let a good person do good deeds with the same zeal that an evil person does bad ones.

Let a good person do good deeds with the same zeal that an evil person does bad ones.

The zeal of friends it is that razes me,
And not the hate of enemies.
[Ger., Der read more

The zeal of friends it is that razes me,
And not the hate of enemies.
[Ger., Der Freunde Eifer ist's, der mich
Zu Grunde richtet, nicht der Hass der Feinde.]

Experience shows that success is due less to ability than to zeal. The winner is he who gives himself to read more

Experience shows that success is due less to ability than to zeal. The winner is he who gives himself to his work body and soul.