Never take someone for granted

Never take someone for granted.
Hold every person close to your heart -

because you might wake up one day and realize 

that you have lost a diamond while you were too busy collecting stones.

                                                      ~  ~  ~

Meaning: Do not take anyone for granted that they will always be here with you -

That they will continue to have the same feelings for you.

Everything can change Unless you pay attention to them as well.