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."

"Depression can be the calling to do your life's work."

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

"Cognitive therapy is based on the idea that our emotions are not caused by situations, but by our thoughts about situations."

"The person who says it cannot be done should not interrupt the person doing it."

"You have power over your mind, not outside events. Realize this, and you will find strength."

"Anxiety is the price you pay for a future."

"What you think, you become."

"The mind creates a kind of psychological shield against excessive amounts of anxiety."

"Success is getting what you want; happiness is wanting what you get."

"It is not the events themselves that determine our internal state, but our beliefs about them."

"Your thoughts are like the rudder of a ship; they determine your direction."

"Every thought is a suggestion, not a command."

"The key to change is to let go of fear."

"Problems are opportunities in disguise."

"Your thoughts are the architects of your future."

"The capacity to form affectionate bonds is a fundamental human need."

"Happiness comes from engagement with meaningful activities."

"What lies behind us and what lies ahead of us are small matters compared to what lies within us."

"The essence of depression is the conviction that you are hopeless."

"We can learn to challenge our thoughts and change our emotional responses."

"Freedom is not something given to you; it's something you create."

"Understanding your thoughts is the first step to controlling them."

"Time is the canvas on which our thoughts are painted."

"The person who can change their mind is wiser than the one who cannot."

"Courage is not the absence of fear, but action in the face of it."

"Your perception shapes your reality."

"The mind has the power to heal the body."