Below is my /etc/motd on my Solaris 10 Toshiba notebook.
When you can measure what you are speaking about, and express it in
numbers, you know something about it; but when you cannot measure it,
when you cannot express it in numbers, your knowledge is of a meager
and unsatisfactory kind it may be the beginning of knowledge, but you
have scarcely, in your thoughts, advanced to the stage of science.
William Thomson, Lord Kelvin
Quidquid latine dictum sit, altum viditur.
Whatever is said in Latin sounds profound.
This video at YouTube is a must watch if you believe,as I do, in the importance of quantifying challenges. If you want to watch the narrated version, go to this video.