心理过程进化是为了解决实际问题。
Happiness is not something ready-made. It comes from your own actions.
人は、困難を乗り越えることで、成長する。
The greatest victory is the victory over oneself.
The only way to get rid of a temptation is to yield to it.
Dearer than eye-sight, space, and liberty; Beyond what can be valued, rich or rare;
Science fiction is the literature of change.