Change is a nature of life
But challenge is a aim of life
So you have to challenge the changes
But not 2 change the challenges.

Watch your feelings
They become your thoughts
Watch your thoughts
They become your words
Watch your words
They become your actions
Watch your actions
They become your habits
Watch your habits
They form your character

Life is different than a teacher, a teacher teaches lesson and then takes an exam, but life takes the exam first and then teaches a lesson.