There were two brothers. One was a drunk who beat his family. The other one was a respected and successful businessman and was loving and caring towards his family.
How could two brothers from the same parents, brought up in the same environment be so different? When asked they gave the following answers. The first one replied "I became like this due to my childhood. When I was a little boy, I used to see my dad drunk and doing all the wrong things. So I became like this." The second brother replied "I became like this due to my childhood. When I was a little boy, I used to see my dad drunk and doing all the wrong things. I decided that that is not what I wanted to be."
It is not the situation that determines our life, but how we respond to it. What happens to us is just 10% of life. How we respond to the situation decides 90% of our life. We have no control over 10% of what happens to us. However, we have control over the other 90%. We can always choose how we respond.