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People are mostly shaped by their genes and their environment, but within those constraints, they have some freedom to choose their own path.
People who learn to control inner experience will be able to determine the quality of their lives, which is as close as any of us can come to being happy.
The defining characteristic of pessimists is that they tend to believe bad events will last a long time, will undermine everything they do, and are their own fault.
Optimists tend to interpret their troubles as transient, controllable, and specific to one situation. Pessimists, on the other hand, believe that their troubles last forever, undermine everything they do, and are uncontrollable.
Men and women differ in their reproductive strategies because they have faced different adaptive problems throughout evolutionary history.
Every person must have a thought that changes them, or a book, or a word, or a moment; and if they don't, their life is wasted.
