Attitude.

The greatest obstacle to breaking the sound barrier was not engineering but attitude. ~Doug Dickerson

We can complain because rose bushes have thorns, or rejoice because thorn bushes have roses. ~Abraham Lincoln

Whether You Believe You Can, Or You Can’t, You Are Right. ~Henry Ford

Winners don’t do different things. They do things differently. ~Shiv Khera

You cannot tailor-make the situations in life but you can tailor-make the attitudes to fit those situations ~Zig Ziglar

Positive thinking will let you do everything better than negative thinking will. ~Zig Ziglar 

Positive anything is better than negative nothing. ~Elbert Hubbard 

The greatest discovery of all time is that a person can change his future by merely changing his attitude. ~ Oprah Winfrey

Winners never quit and quitters never win.

The Only Impossible Journey is the one you never begin. ~Anthony Robbins

It doesn't matter where you are coming from. All that matters is where you are going. ~Brian Tracy