This quote by Francis Bacon is a metaphor for the idea that progress is inevitable. The acorn is a symbol of the past, representing the primitive and basic lifestyles that were as soon as prevalent. The bread, on the other hand, is a sign of today and future, representing the advances in innovation and knowledge that have been made over time. Bacon is recommending that while the past may have been excellent, it is no longer enough. We need to continue to strive for development and improvement in order to make our lives much better. This quote is a tip that we ought to never ever be content with the status quo, however instead must always be trying to find ways to enhance and innovate.