The past is a source of knowledge, and the future is a source of hope. Love of the past implies faith in the future.

The past is a source of knowledge, and the future is a source of hope. Love of the past implies faith in the future.

过去是知识的源泉，未来是希望的源泉。对过去的爱意味着对未来的信心。

-- Stephen E. Ambrose 斯蒂芬·安布罗斯