He who sows the ground with ...

He who sows the ground with care and diligence acquires a greater stock of religious merit than he could gain by the repetition of ten thousand prayers
 Zoroaster

Quotes from the same author

Ability in a man is knowledge which emanates from divine light
 Zoroaster
Satisfaction linked with dishonor or with harm to others is a prison for the seeker.
 Zoroaster
In doubt if an action is just, abstain.
 Zoroaster
When we are in doubt whether an action is good or bad, abstain from it.
 Zoroaster
War and courage have done more great things than charity. Not your sympathy, but your bravery has saved the unfotunate.
 Zoroaster