“We’re inferring from an absence of data,” Jacque said. “That’s lousy science.”

Guessing a thing ain't knowing a thing.

When facts are insufficient, theorizing is ridiculous at best, misleading at worst.

Without data, you're just another person with an opinion.

Without Statistics and numbers, it's a mere thought of unconvincing opinions.

I have no data yet. It is a capital mistake to theorise before one has data. Insensibly one begins to twist facts to suit theories, instead of theories to suit facts.

With insufficient data it is easy to go wrong.

No data is preferable to poor data.

Prediction is not the same thing as understanding, but in the absence of prediction, we can certainly doubt understanding.

It is a capital mistake to theorise before one has data.

To speculate without facts is to attempt to enter a house of which one has not the key, by wandering aimlessly round and round, searching the walls and now and then peeping through the windows. Facts are the key.

It is a capital mistake to theorize before one has data. Insensibly one begins to twist facts to suit theories, instead of theories to suit facts.

Areas where there is a lack of data, or a lack of understanding, are automatically assumed to belong, by default, to God.

You cannot do statistics without logic. Otherwise you become a data fraud, or, worse, an economist.