1. Pada Sutta.– Just as all the footprints of roaming creatures are contained within the footprint of the elephant, so of all profitable conditions that are rooted in earnestness, earnestness is reckoned the chief. S.v.43.
2. Pada Sutta.– The simile is the same as the above, but it illustrates the fact that of all the elements that conduce to wisdom, the controlling faculty of insight is reckoned the chief. S.v.230.