"One swallow does not make a summer, but one skein of geese, cleaving the murk of March thaw, is the Spring"

This quote by Aldo Leopold is a suggestion that a person single occasion or event does not necessarily represent a bigger modification. The swallow is a sign of the arrival of summer season, however its existence alone does not suggest that summer season has actually arrived. Similarly, the skein of geese is a sign of the arrival of spring, however it too does not always imply that spring has actually come. The quote is a tip that we need to not be too fast to leap to conclusions based on one occasion or incident. Rather, we must put in the time to observe the larger photo and acknowledge the steady changes that happen in time. Leopold's quote is a tip that we ought to not be too fast to judge or presume based upon one occasion, but rather take the time to observe the bigger photo and acknowledge the gradual modifications that occur over time.