“The capacity of digital data storage worldwide has doubled every nine months for at least a decade, at twice the rate predicted by Moore’s Law for the growth of computing power during the same period.” (Fayyad et al., 2002)
It can be mentioned to justify the overall success of data mining. Personally, I use it as an introductory slide in most of my presentations related to data mining. Feel free to add the data mining quotes you like as a comment to this post.
Fayyad, U. and Uthurusamy R., Evolving data mining into solutions for insights, Communications of the ACM, Vol. 45, No. 8, 2002, pp. 28-31.