Zeal without knowledge is a runaway horse.
Zeal without knowledge is like fire without light.
Too much zeal spoils everything.
Zeal is like fire: it needs both feeding and watching.
Zeal is fit only for wise men but is found mostly in fools.
Zeal without knowledge is fire without light.
Zeal will do more than knowledge.
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.
Experience shows that success is due less to ability than to zeal.
Trustful people are the pure at heart, as they are moved by the zeal of their own trustworthiness.
There is a holy, mistaken zeal in politics, as well as in religion. By persuading others, we convince ourselves.
When you are laboring for others let it be with the same zeal as if it were for yourself.
The greatest dangers to liberty lurk in the insidious encroachment by men of zeal, well meaning but without understanding.
Spiritual infirmities such as tepidity are caused, not only by chills but also by fevers, that is, by excessive zeal.
All enterprises that are entered into with indiscreet zeal may be pursued with great vigor at first, but are sure to collapse in the end.
A policy is a temporary creed liable to be changed, but while it holds good it has got to be pursued with apostolic zeal.
Kindness has converted more sinners than zeal, eloquence, or learning.
Just as food eaten without appetite is a tedious nourishment, so does study without zeal damage the memory by not assimilating what it absorbs.
My father and uncles and all their friends turned their lungs black trying to satisfy my collector's zeal.
We do have a zeal for laughter in most situations, give or take a dentist.
