I find it hard to swallow that I have only ten times more genes than those lowly bacteria in my gut. I had always liked the fact that they have ten thousand times less DNA than I did - that felt about right - but a factor of ten was carrying democracy a bit too far. Gottfried Schatz
It is very expensive to achieve high unreliability. It is not uncommon to increase the cost of an item by a factor of ten for each factor of ten degradation accomplished. Norman Ralph Augustine
The fact of being reported increases the apparent extent of a deplorable development by a factor of ten. Barbara Tuchman
In a spiral galaxy, the ratio of dark-to-light matter is about a factor of ten. That's probably a good number for the ratio of our ignorance to knowledge. We're out of kindergarten, but only in about third grade. Vera Rubin