投資是什麼

More succinctly, investing is forgoing consumption now in order to have
the ability to consume more at a later date.

簡潔的說，投資就是放棄現在的消費，以換取未來有消費更多的能力。

Warren Buffett's Letters to Berkshire Shareholders in 2012
巴菲特2012年致波克夏公司股東信