The PAC learning framework provides a formal way to analyze the efficiency and effectiveness of learning algorithms.
釋義：解決困難問題，應從還比較易于處理的時候開始；鏟除邪惡，應趁它尚在細微的時候進行。
每個讀者都是潛在的作家，每個作家都是反抗的讀者。
Consumer trust is earned through transparency and consistent delivery of promises.