Quote by Aaron Beck

"The mind is like a filter. It takes in millions of pieces of information and filters out what's important."

"You feel the way you think."

"Our thoughts, not external events, cause our feelings."

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

"I believe in working hard for what you want."

"Never underestimate the power of determination."

"I don't need a reason to fight."

"The most important thing is the mission. Nothing else matters."