释义：贫穷和地位低下不是什么耻辱的事，但因为贫穷和地位低下而向他人谄媚奉承，乞求得到施舍，就真是耻辱。
真正的强大是承认自己的软弱。
The PAC learning framework provides a formal way to analyze the efficiency and effectiveness of learning algorithms.
"We are all in the gutter, but some of us are looking at the stars."
政策应该基于证据，而不是意识形态。
The past is a mirror that reflects the present.
