A man who does something always gets its fruit. This is universally accepted principle. Many resources are expected something/to perform an act. A person knows that the degree of result may vary due to the resources utilised.
A question, in this situation, arises, which is that force that should be used to get better result? It is said here in an answer to this question, that a firm determination i.e this work must be done all the resources yields bettter result. If a person wants to achieve better result, he must remain active/engaged with firm determination, in whatever he does.