used to suggest that changing deeply ingrained habits can be difficult due to the comfort and familiarity associated with them

used to suggest that negative or harmful habits can be particularly difficult to break or change, even when one knows they are harmful to one's well-being or success

used to imply that habits or actions that are repeated frequently become automatic and require less conscious effort, emphasizing that people should be mindful of their habits

used to imply that some people repeat harmful behavior despite knowing it is harmful to their well-being or success, emphasizing the importance of learning from past mistakes

used to imply that a consistent sleep schedule, where one goes to bed early and wakes up early, can lead to increased productivity and overall well-being

used to suggest that individuals should focus on their area of expertise or specialization, rather than attempting to do things they are not skilled at, to avoid the risk of failure

used to suggest that someone who has a history of stealing or engaging in dishonest behavior is likely to continue doing so in the future, regardless of any attempts to change or reform