"Depression has been called the worlds number one public health problem. In fact, depression is so widespread it is considered the common cold of psychiatric disturbances. But there is a grim difference between depression and a cold. Depression can kill you."

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I just haven't been conditioned into thinking that the right answer can't be a simple one. When I told you you'd been contaminated I meant by that attitude, which is wider-spread than the common cold and just as undermining. Did nobody ever point out to you that the only liberty implied by free will is the opportunity to be wrong?

— John Brunner