The great tragedy of Science—the slaying of a beautiful hypothesis by an ugly fact.  
UNIX is very simple, it just needs a genius to understand its simplicity.
世界不需要更多可爱的东西,它需要更多真实。
The mother-child relationship is paradoxical and, in a sense, tragic. It requires the most intense love on the mother's side, yet this very love must help the child grow away from the mother, and to become fully independent.