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最好的設計來自于限制，而非無限的可能性。

Psychology must be a practical science, concerned with the how and why of mental operations.

The Worldly Hope men set their Hearts upon Turns Ashes—or it prospers; and anon, Like Snow upon the Desert's dusty Face, Lighting a little hour or two—is gone.

Evil is whatever distracts.

The problem of quality management is not what people don't know about it. The problem is what they think they do know.