Maturity refers to being mature, something that should come with age and wisdom. There are maturity quotes that show how valuable this characteristic can be. We do not expect children to have maturity because they are young and still learning, but when adults act like children this can be annoying for many people. Maturity involves acting responsibly and making smart decisions, and there are many adults who have not reached this stage in life yet. If you are mature then you have patience and you understand the value of waiting for what you want. A mature person will save money while someone who has not yet reached full maturity will want to spend every penny as soon as they get it with no thought to the future.