“No one really knows why humans do what they do.”
“You are not really free, and that is why you do not know what I am talking about.”
“People know what they do; frequently they know why they do what they do; but what they don't know is what what they do does.”
“People know what they do; they frequently know why they do what they do; but what they don’t know is what what they do does.”
“But who can divine the workings of a single human heart? Who really knows what a person thinks and believes when he or she decides to do whatever they do?”
“No one really knows why they are alive until they know what they'd die for.”